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Two stones of masses m and 2 m are proje...

Two stones of masses `m` and `2 m` are projected vertically upwards so as to reach the same height. The ratio of the kinetic energies of their projection is

A

`2 : 1`

B

`1 : 2`

C

`4 : 1`

D

`1 : 4`

Text Solution

Verified by Experts

The correct Answer is:
`(2)`
`KE = 1/2 mv^(2)`, when two bodies reach the same height , `v_(1) = v_(2), KE_(1)/KE_(2) = m_(1)/m_(2) (because v = sqrt2gh)`
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