Question

(b) 0.72 x 1022 kg
21. If the escape velocity of a planet is 3 times that of the earth
and its radius is 4 times that of the earth, then the mass of the
planet is (Mass of the earth = 6x1024 kg ) [Kerala PET 2010)
2
(a) 1.62 x 1022 kg
(c) 2.16 x 1026 kg
(d) 1.22 x 1022 kg
(e) 3.6x1022 kg​

Answer 1

Answer:

this is my answer : a)

Explanation: