Question

if the mass of a planet is 8 times the mass of the earth and radius is twice the radius of earth what will be the escape velocity for that planet

Answer 1

Hii....

The escape velocity of earth:√2GM/R==

Ve=======================11.2km/s

The escape velocity of planet:√2GM*8/2R==

===========================√2GM/R*4==

===========================Ve*√4

============================11.2*2====22.4km/s