Question

(iii) If the mass of a planet is eight times the mass of the earth and its radius
twice the radius of the earth, what will be the escape velocity for that planet??​

Answer 1

Answer:

Planet radius is twice then the radius of earth. If the mass of planet is eight times then escape velocity = 2 √2 times. Hence the net escape velocity will be increase. 2 √2 × (1/√2)= 2 times now