(Solved by Humans)-A rubber ball with mass M=10g falls on the ground from the height
Question
A rubber ball with mass M=10g falls on the ground from the height H=10m. The ball then back up to the height h=8m. Gravitational acceleration is g=10m/s^2.
a) what is the velocity v=?of the ball right before hitting the ground?
b)what is the velocity of the ball v=? when it start moving back up from the ground?
c)if the collision with ground takes t=0.03s,what is the average force F=?exerted by the ground on the ball?
d)How much energy E=? is lost in the collision?
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