Two spheres of same material are moving ...

Two spheres of same material are moving with kinetic energies in the ratio `108:576`. If the ratio of their velocities is `2:3`, then the ratio of their radii is

`1 : 1`

`2 : 3`

`3 : 4`

`4 : 3`

Text Solution

Verified by Experts

The correct Answer is:

`(3)`

`K = 1/2 Mv^(2) and 4K = 1/2 rho(4/3 pi r^(3) ) v^(2)`

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