If The Ball Accelerates Uniformly When It Hits The Floor

A student is testing the kinematic equations for uniformly accelerated motion by measuring the time it takes for light weight plastic balls to fall to the floor from a height of 3 m in the lab. A book is knocked off a bench and falls vertically to the floor. A car initially traveling with a uniform velocity accelerates at a rate of 1 0 m s2 for a period of 12 seconds.

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A car starts from rest and accelerates uniformly for 8 0 s.

If the ball accelerates uniformly when it hits the floor.

By what percent does the kinetic energy decrease. When dropped from a height of 2 5 monto a concrete surface a ball must rebound to a height of 1 4 m. A strategic approach with masteringphysics 0th edition edit edition. If the ball accelerates uniformly when it hits the floor what is its approximate acceleration as it comes to rest before rebounding.

A girl hits a ball so that it hits a rock and travels straight up into the air. If the ball accelerates uniformly when it hits the floor wh. The student predicts the time to fall using g as 9 80 m s2 but finds the measured time to be 35 greater. The ball s kinetic energy just after the bounce is less than just before the bounce.

When a tennis ball bounces from a racket the ball loses approximately 30 of its kinetic energy to thermal energy. B calculate its velocity just after it leaves the floor on its way back up. During impact the ball compresses by approximately 6 mm. Assuming that the player accelerates uniformly determine the distance he runs.

A ball rolls down an inclined plane with a constant acceleration of 2 5 m s2. B if the ball accelerates uniformly when it hits the floor what is its approximate acceleration as it comes to rest before rebounding. Solution for a tennis ball bouncing on a hard surface compresses and then rebounds. Problem 72pp from chapter 10.

I got the right answer of 4000 m s 2 c. The details of the rebound are specified in tennis regulations. If the car traveled 190 m during this 12 second period what was the velocity of the car when it started to accelerate. A soft tennis ball is dropped onto a hard floor from a height of 1 50 m and rebounds to a height of 1 10 m.

A calculate its velocity just before it strikes the floor. How fast is the ball moving when it hits the concrete surface. If the ball accelerates uniformly when it hits the floor what is the approximate acceleration as it comes to rest before rebounding. In getting ready to slam dunk the ball a basketball player starts from rest and sprints to a speed of 11 0 m s in 2 58 s.

It reaches a final speed of 16 m s 1. If the book takes 1 0 s to fall to the floor calculate.

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