Gravitation Question 168

Question:The acceleration due to gravity on a planet is same as that on earth and its radius is four times that of earth. What will be the value of escape velocity on that planet if it is [ve] on earth[RPET 2002]

Options:

A) [ve]

B) [2ve]

C) [4ve]

D) [ve2]

Show Answer

Answer:

Correct Answer: B

Solution:

[v=2gR]

Þ [vpve=gpge×RpRe=1×4=2] \ [vp=2ve]



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