A stone is projected with a velocity u such that it reaches height h. Find the ratio of its kinetic energy and potential energy when it is at a height 3h/4 from the ground. (potential energy is zero at the point of projection)
Can anyone do this for me? Please show the steps.

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1 Answers
Amartya Kumar Mistry
·20140627 08:37:12
I think the answer should be 1:3
at first conservation of energy we get u^2=2gh
then by vertical motion of under gravity we can find at a height 3h/4 its kinetic energy will be mgh/4 and potential energy will be simply 3mgh/4 now you can find the ratio
 ARKADYUTI BANDYOPADHYAY OK. Good explanation.Upvote·0· Reply ·20140628 00:05:32