Gravitation Question 151

Question: The escape velocity on earth is 11.2 km/s. On another planet having twice radius and 8 times mass of the earth, the escape velocity will be[Bihar CMEET 1995]

Options:

A) 3.7 km/s

B) 11.2 km/s

C) 22.4 km/s

D) 43.2 km/s

Show Answer

Answer:

Correct Answer: C

Solution:

[vpve=MpMe×RpRe=8×12=2] [vp=2×ve=22.4km/s]



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