Question

2) A ball is dropped from rest at the top of a high cliff. It takes 10.00 seconds for the ball to reach the ground below. Find: a) the height of the cliff, b) the velocity of the ball hitting the ground below, c) the time it takes for the ball to fall half of the cliff's height, and d) the velocity at this halfway point. (Remember acceleration due to gravity is -9.800 m/s^2).

Answer #1

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Express...

A
ball is dropped from rest from the top of a 6.10 m-y’all building,
falls straight downward, collides inelasrically with the ground,
and bounces back. The call loses 10.0% of its kinetic energy every
time it collides with the ground. How many bounces can the ball
make and still reach a windowsill that is 2.44 m above the
ground?

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