A stone projected vertically upwards from the ground reaches a maximum height h. When it is at a height
3h/4, the ratio of its kinetic and potential energies???
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If it reaches height h, that means it was projected with initial kinetic energy equal to mgh
At height 3h/4, Potential energy= 3mgh/4
Kinetic energy = mgh- 3mgh/4 = mgh/4
Ratio of kinetic to potential energy = 1/3
Explanation:
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