Asked by Anonymous
A ball of mass 1000g drops from a height of 5m and rebounded to a height of 2.5m. Calculate
I. It's kinetic energy before impact
ii. It's initial rebound ,velocity and kinetic energy
I. It's kinetic energy before impact
ii. It's initial rebound ,velocity and kinetic energy
Answers
Answered by
bobpursley
1. KE before impact=mgh=1kg*9.8N/kg*5m
2. initial rebound energy= mgh=1kg*9.8N/kg*2.5m
velocity? find from 1/2 m v^2=initial rebound energy solve for v
2. initial rebound energy= mgh=1kg*9.8N/kg*2.5m
velocity? find from 1/2 m v^2=initial rebound energy solve for v
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