A second ball is thrown at an angle of At what speed must the second ball be thrown so that it reached the same height as the one. From what height h was the ball thrown? Which I got this answer below. If it takes a ball. A player at the bottom of the cliff is 12 m away from the base of the cliff and runs at a maximum speed of 6.

It lands on the edge of the cliff 3. What is the height of the cliff? What is the maximum height of the ball? What is the ball's impact. Bob has just finished climbing a sheer cliff above a beach, and wants to figure out how high he climbed.

All he has to use, however, is a baseball, a stopwatch, and a friend on the ground below with a long measuring tape. Bob is a pitcher, and knows that. What is the instantaneous velocity of the ball when it hits the. At what speed must the second ball be thrown so that it reaches the same maximum height as the. A ball is dropped from a height of A second ball is thrown from the height 0.

If both balls reach the ground at the same time, what was the initial velocity of the second ball? Ignore air resistance and assume the ball does not hit the. How long will it take the second ball to overtake the first?

A ball is thrown horizontally of a cliff. If the initial speed of the ball is Calculate the answer in meters m and rounded to three. A ball is thrown straight upward and returns to the thrower's hand after 2.

At what speed must the second ball be thrown so that it reaches the same height as the one thrown. How far down will the ball be after 1 second? How far down will the ball have fallen after 3 seconds?I have 5 choices.

Help please! I'm pretty sure both balls hit the ground at the same time so it can't be A or B. Ball A is thrown horizontally and ball B is dropped vertically from the same height at the same moment.? Neglecting air resistance, the vertical velocity of any object in the air increase 9.

Ball A moves horizontally at a constant velocity and the vertical velocity increase 9. Since the vertical velocity determines the time in the air, both balls will be falling for the same time. The horizontal action of the thrown ball makes no distinction via fact gravity acts vertically. They reach at same time and have same speed. Hence option, " e Both balls have the same speed when they reach the ground. Trending News. Trump turns power of state against his political rivals.

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Ex-Obama adviser: Covid infections 'going to go up'. Girl, 3, falls into scalding water at Yellowstone. Daniel D. Which of the following is true? Answer Save. I found a mistake! Let'slearntothink Lv 7. Al Lv 7. I'm pretty sure e would be a good answer. Still have questions? Get your answers by asking now.Apne doubts clear karein ab Whatsapp 8 par bhi. Try it now. Alleen Test Solutions. About Us. Get App. English Dictionary. Toppers Talk. Jee Crash Course.

Click Question to Get Free Answers. Watch 1 minute video. This browser does not support the video element. Text Solution Answer : A. Related Video View All. A ball is dropped on the floor from a height of 10m. It rebounds to a height of 2. A ball is dropped on the floor a height of rebounds to a height of. If the ball is in contact with floor for 0. A ball is dropped onto the floor from a height of 10 m. It rebounds to a height of 5 m. If the ball was in contact with the floor forwhat was its average acceleration during contact?

A tennis ball is dropped on to the floor from a height of. It rebounds to a hdight of. To test the quality of a tennis ball, you drop it onto the floor from a height of 4. If the ball is in contact with the floor for A ball falls from 20 m height on floor and rebounds to 5 m. Time of contact is 0. Find acceleration during impact. A tennis ball is lying on a rigid floor. A steel ball is dropped on it from some height.

### Projectiles physics question, how can I calculate vertical height?

The steel ball bounces vertically after hitting the ball on the floor. It possible that the tennis ball with also bounce?By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. Physics Stack Exchange is a question and answer site for active researchers, academics and students of physics.

It only takes a minute to sign up. My textbook says that a ball dropped vertically and a ball thrown sideways will not only both land simultaneously but their height will be corresponding for the entire fall, as shown in a diagram which has a ball falling vertically and a ball with an arch landing simultaneously. This has really struck me as it feels intuitive that the ball dropped vertically would land faster, perhaps due to it traveling a shorter distance.

When I tried to think about it for myself, I came to the thought that perhaps it was due to gravity constantly pulling both of the balls, however would the sideways velocity not slow it downwards speed?

For eg wouldn't a bullet take longer to land than a dropped bullet as it is traveling straight? Since gravity only acts in the vertical direction, what the balls are doing in the horizontal direction doesn't matter. Another answer to the title question could be "Why wouldn't they land at the same time? That's the point of these types of physics problems. Gravity will affect a horizontally released object the Same way as one released when stationary. Same will happen with a bullet. Same for someone running off a cliff vs.

You don't float in the air momentarily like the coyote and the roadrunner! Gravity starts acting immediately.

So even a bullet is never "traveling straight". Imagine you and your friend are standing in front of each other. Your friend drops a ball. Now imagine that instead of standing still, you are in a car travelling past your friend. It seems preposterous that the ball would fall faster or slower just because you got in a car to look at it.

The car ought to have no effect on the ball. You say that the dropped ball should land sooner, as it travels a shorter distance. This reasoning would work if both balls were travelling at the same speed, which they are not. The dropped ball has no extra force exerted on it by the dropper, and moves only due to the force of gravity, acting directly downwards along the y-axis.

The thrown ball, however, has had extra force exerted on it, in addition to that of gravity. In this idealized diagram, all the extra force is acting along the x-axis. Its y-axis velocity, the speed at which it moves downwards, is determined purely by gravity, just as in the case of the dropped ball, as none of the throwing force is directed downwards. Both the balls have the same velocity along the y-axis and therefore should reach the ground at the same time.

## Projectiles physics question, how can I calculate vertical height?

There is no reason that moving faster in one dimension should cause an object to move slower in another dimension, as you alluded to suspecting in your last paragraph. Using your example, a bullet shot downwards would reach the ground more quickly than if dropped, but this is because extra force has been exerted on it in the downwards direction by the gun. If the bullet was shot parallel to the ground, it would take as long to land as a bullet simply dropped unless it was particularly aerodynamic and its movement generated lift, keeping it afloat longer.

Hopefully it should be obvious that both balls will hit the ground at the same time because the situation is symmetric. But now consider what the pilot of the plane on the left sees.Falling objects form an interesting class of motion problems.

For example, we can estimate the depth of a vertical mine shaft by dropping a rock into it and listening for the rock to hit the bottom. By applying the kinematics developed so far to falling objects, we can examine some interesting situations and learn much about gravity in the process. The most remarkable and unexpected fact about falling objects is that, if air resistance and friction are negligible, then in a given location all objects fall toward the center of Earth with the same constant accelerationindependent of their mass.

**Physics - Mechanics: Motion In Two-Dimensions: (15 of 21) Example 4: Motorcycle Jump**

This experimentally determined fact is unexpected, because we are so accustomed to the effects of air resistance and friction that we expect light objects to fall slower than heavy ones. Figure 1. A hammer and a feather will fall with the same constant acceleration if air resistance is considered negligible. This is a general characteristic of gravity not unique to Earth, as astronaut David R.

Scott demonstrated on the Moon inwhere the acceleration due to gravity is only 1. In the real world, air resistance can cause a lighter object to fall slower than a heavier object of the same size. A tennis ball will reach the ground after a hard baseball dropped at the same time. It might be difficult to observe the difference if the height is not large.

Air resistance opposes the motion of an object through the air, while friction between objectsâ€”such as between clothes and a laundry chute or between a stone and a pool into which it is droppedâ€”also opposes motion between them. For the ideal situations of these first few chapters, an object falling without air resistance or friction is defined to be in free-fall.

The force of gravity causes objects to fall toward the center of Earth. The acceleration of free-falling objects is therefore called the acceleration due to gravity.

The acceleration due to gravity is constantwhich means we can apply the kinematics equations to any falling object where air resistance and friction are negligible. This opens a broad class of interesting situations to us. The acceleration due to gravity is so important that its magnitude is given its own symbol, g.

Although g varies from 9. The direction of the acceleration due to gravity is downward towards the center of Earth. In fact, its direction defines what we call vertical. The best way to see the basic features of motion involving gravity is to start with the simplest situations and then progress toward more complex ones.

So we start by considering straight up and down motion with no air resistance or friction. These assumptions mean that the velocity if there is any is vertical.

If the object is dropped, we know the initial velocity is zero. Once the object has left contact with whatever held or threw it, the object is in free-fall. Under these circumstances, the motion is one-dimensional and has constant acceleration of magnitude g. We will also represent vertical displacement with the symbol y and use x for horizontal displacement.

A person standing on the edge of a high cliff throws a rock straight up with an initial velocity of The rock misses the edge of the cliff as it falls back to earth. Calculate the position and velocity of the rock 1. We are asked to determine the position y at various times.

It is reasonable to take the initial position y 0 to be zero. This problem involves one-dimensional motion in the vertical direction. We use plus and minus signs to indicate direction, with up being positive and down negative.

Since up is positive, and the rock is thrown upward, the initial velocity must be positive too. The acceleration due to gravity is downward, so a is negative. It is crucial that the initial velocity and the acceleration due to gravity have opposite signs.

Opposite signs indicate that the acceleration due to gravity opposes the initial motion and will slow and eventually reverse it.First Name.

### Projectiles physics question, how can I calculate vertical height?

Your Response. With what initial speed must a ball be thrown straight up to reach the same maximum height h? Physics: a ball is thrown vertically upward with an initial velocity of 80 feet per second.

A blue ball is thrown upward with an initial speed of What is the velocity at the midway point of a ball able to reach a height y when thrown with an initial velocity v0?

Assume the ball is thrown upward and that up is the positive direction. Use the following as necessary: y and g. After reaching maximum height, on the way down it strikes a bird which is 10 m above the ground. What is the velocity of the ball when it hits the bird?

A ball is thrown vertically upward with a speed of How high does the ball rise? How long does it take to reach its highest point? How long does the ball take to hit the ground after it reaches its. The ball is caught by the receiver 2. Determine horizontal velocity, vertical initial velocity, the. A ball is thrown vertically upward from ground level with initial velocity of 96 feet per second. Neglect air Resistance. Ignore air resistance and assume the.

You can use any coordinate system you like in order to solve a projectile motion problem. The maximum height of the ball is. You can view more similar questions or ask a new question.

Physics What is the velocity at the midway point of a ball able to reach a height y when thrown with an initial velocity v0? Calculus 1 A ball is thrown vertically upward from ground level with initial velocity of 96 feet per second. Ignore air resistance and assume the Physics A. The maximum height of the ball is You can view more similar questions or ask a new question. Ask a New Question.A stop watch measures the stone's trajectory time from top of cliff to bottom to be 6.

How far out from the cliff's edge does. What is the instantaneous velocity of the ball when it hits the. A stop watch measures the stone's trajectory time from the top of the cliff to the bottom to be 4. What is the height of the cliff? Ignore air resistance and assume the ball does not hit the. How long will it take the second ball to overtake the first? Three identical balls are thrown from a cliff of height, h, above a horizontal plane. One ball is thrown at an angle of 45 degrees above the horizon, the second is thrown horizontally, and the third is thrown at an angle of 30 degrees below the horizon.

A stone is thrown horizontally outward from the top of a bridge, the stone is released A ball is thrown horizontally of a cliff. If the initial speed of the ball is Calculate the answer in meters m and rounded to three. A rock is thrown vertically upward from the edge of a cliff.

The rock reaches a maximum height of How high is the cliff? How far down will the ball be after 1 second? How far down will the ball have fallen after 3 seconds? It lands on the edge of the cliff 3. A ball is dropped from the top of a At the same time, a carefully aimed stone is thrown straight up from the bottom of the cliff with a speed of How far above the base of the cliff does this.

A ball is thrown horizontally from the top of a building m high. The ball strikes the ground 70 m horizontally from the point of release. What is the speed of the ball just before it strikes the ground?

One ball is dropped from a cliff. A second ball is thrown down 1. How long after the second ball is thrown will the second ball overtake the first? How long does it take the stone to reach the bottom of the cliff? The stone and ball collide part way up. Bob has just finished climbing a sheer cliff above a beach, and wants to figure out how high he climbed.

All he has to use, however, is a baseball, a stopwatch, and a friend on the ground below with a long measuring tape. Bob is a pitcher, and knows that. Which of the following curves best describes the path taken by the grenade?

Parabola 4 A stone is thrown horizontally from the top of a The stone lands at a distance of A ball is thrown horizontally from a cliff and hits the ground 4 seconds later 40 meters from the base of the cliff. How high was the cliff rounded to the nearest tenth of a meter?

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