Entry Test MCQ :: Work And Energy

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If moon radius is 1600 km and g on its surface is 1.6 ms-2 then the escape velocity on the moon is

[A].	1600 ms-1	[B].	50.6 ms-1
[C].	71.6 ms-1	[D].	2263ms-1

Answer: Option B

Sanee salim said:

2gr in under root is the formula to calculate escape velocity 21.61600 and its root is 71.6