Asked by Anonymous

A ball of mass 1kg is thrown upwards and reaches a maximum height of 4m.Calculate the work done by the force of gravity during vertical displacement.Take g=10m/s
Answered by Damon
work done = change in potential energy
m g h = 1 * 10 * 4 Joules
Answered by Roohaisha Choudary
Since
Work done is change in kinetic energy.
So,W=Ke m=1kg
and Ke=mgh g=-10m\s2
=1x-10x4 h=4m
Ans =-40Nm
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