Question

ESCAPE VELOCITY : SATELLITE AND ORBITAL
VELOCITY:
1. If the mass of the venus is 0.814 times of the
earth and radius is 0.967 times of the earth.
Then escape velocity on the venus is
a) 11 km/s
b) 10.25 km/s
c) 10.25 km/hr
d) 10 km/s
P
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Answer 1

Answer:  option b

Explanation:

 the escape vel of any planet is √2GM/R

                  where M is its mass and R is its radius

                       putting in terms of earth √2G(0.814M)/(0.967)R

                           u will get 0.91 x Ve

                        Ve = 11.2 km/s

               put the value u will get Ve on venus as 10.25 km/s