Asked by iyali

A ball of Mass 8kg falls from rest from a height 100m neglecing air resistance calculate it's total energy after falling a distance of 40m
Answered by Anonymous
defining potential energy as zero at the ground

m g h = 8 * 9.81 * 100

the sum of kinetic and potential energy is constant during the fall.
Answered by Anonymous
In other words they are trying to trick you.
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