The student predicts the time to fall using g as 9 80 m s2 but finds the measured time to be 35 greater.
If the ball accelerates uniformly when it hits the floor.
B 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.
The details of the rebound are specified in tennis regulations.
How fast is the ball moving when it hits the concrete surface.
A book is knocked off a bench and falls vertically to the floor.
When a tennis ball bounces from a racket the ball loses approximately 30 of its kinetic energy to thermal energy.
By what percent does the kinetic energy decrease.
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.
If the book takes 1 0 s to fall to the floor calculate.
Solution for a tennis ball bouncing on a hard surface compresses and then rebounds.
A ball rolls down an inclined plane with a constant acceleration of 2 5 m s2.
A calculate its velocity just before it strikes the floor.
If the car traveled 190 m during this 12 second period what was the velocity of the car when it started to accelerate.
I got the right answer of 4000 m s 2 c.
B calculate its velocity just after it leaves the floor on its way back up.
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.
It reaches a final speed of 16 m s 1.
When dropped from a height of 2 5 monto a concrete surface a ball must rebound to a height of 1 4 m.
If the ball accelerates uniformly when it hits the floor wh.
A car starts from rest and accelerates uniformly for 8 0 s.
During impact the ball compresses by approximately 6 mm.
If the ball accelerates uniformly when it hits the floor what is the approximate acceleration as it comes to rest before rebounding.
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.
The ball s kinetic energy just after the bounce is less than just before the bounce.
A car initially traveling with a uniform velocity accelerates at a rate of 1 0 m s2 for a period of 12 seconds.
Problem 72pp from chapter 10.