Question

Value of Escape Velocity of earth is

(a) 11.2Km/s (b) 11.5Km/s

(c) 15km/s (d) 9.8km/s

​

Answer 1

Answer:

Escape speed, v

e

=

R

2GM

=11.2 km/s

For another planet mass is 8 times and radius is twice that of Earth.

∴v

e

′

=

2R

2G×8M

⇒v

e

′

=2

R

2GM

=2×11.2=22.4 km/s

Explanation:

pls mark as brainlist hope it helps you