Question

15. The escape velocity from the surface of earth is Ve. The escape velocity from the

surface of a planet whose mass and radius are 3 times those of the earth will be:

a. Ve

b. 3Ve

c. 9Ve

d. 27Ve​

Answer 1

Answer:

a ve v

e

=

R

2GM

∴ v

e

∝

R

M

If mass and radius of the planet are three times than that of earth then escape velocity will be same.