Asked by lewis

a ball mass 800g is dropped from height of 5m and rebounds to a hight of 3.8m
the air resistance is negligible. calculate

a. the kinetic energy of the ball just before impact
b. the initial rebound speed of the ball
c. the energy transferred to the ground during impact
Answered by rola
A) 0.5×800× 5 =2000
Answered by Anonymous
0.5 x 0.8 x 5
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