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 `rho_1` : `rho_2` is 2 : 1. what is the ratio of respective escape velocities `v_1` : `v_2` from the surface of the planets?

`5:2`

`sqrt5:sqrt2`

`5:2sqrt2`

`25:4`

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