The radius of a planet is twice that of the earth but its average density is the same. If the escape
Channel: Doubtnut
Date: 26/07/2020

The radius of a planet is twice that of the earth but its average density is the same. If the escape speed at the planet and at the earth are  `v_(p)` and `v_(e)`, respectively, then prove that  `v_(p)=2v_(e)`