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A stone projected vertically upwards fro...

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 is

A

`3:4`

B

`1:3`

C

`4:3`

D

`3:1`

Text Solution

Verified by Experts

The correct Answer is:
B
`U=mgxx(3h)/(4)`, total energy `=mgh`
`K=mg(h)/(4)`
`(K)/(U)=(1)/(3)`
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