The ratio of accelerations due to gravit...

The ratio of accelerations due to gravity `g_(1):g_(2)` on the surfaces of two planets is 5:2 and the ratio of their respective average densities `p_(1):p_(2)` is 2:1. What is the ratio of respective escape velocities `v_(1):v_(2)` from the surface of the planets?

`5:2`

`sqrt(5):sqrt(2)`

`5:2sqrt(2)`

`25:4`

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