Question

Escape velocity of a body from the surface of a spherical planet of mass M, radius R and density row is

Answer 1

Answer:

Escape speed is given by v

e

=

R

2GM

But M=Volume×density⇒M=

3

4

πr

3

ρ

⇒v

e

=

2G

R

3

4

πR

3

ρ

⇒v

e

=2R

3

2πρG