Gravitation Question 148

Question: The escape velocity for the earth is 11.2 km/sec. The mass of another planet is 100 times that of the earth and its radius is 4 times that of the earth. The escape velocity for this planet will be [MP PMT 1999; Pb. PMT 2002]

Options:

A) 112.0 km/s

B) 5.6 km/s

C) 280.0 km/s

D) 56.0 km/s

Show Answer

Answer:

Correct Answer: D

Solution:

Escape velocity [v=2,GMRvpve=MpMe×ReRp] [,,vp=5ve=5×11.2=56,,km/s]



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