Please explain how to derive final answer

Please explain how to derive final answer GMm (2 x 9.8 x 6.4 x 100) = 11.2

Dear Student,
We know that the formula of escape velocity is as follows:
V = (2GM/R)0.5                   --------------- (1)
Also,
The acceleration due to gravity we can write as,
g = GM/(R ×R)          or GM = gR2        ----------------- (2)
Therefore, substituting equation (2) in (1)
We get,
V = (2gR)1/2

Thus, how the last expression has derived

Hope this information will clear your doubts about topic.

If you have any more doubts just ask here on the forum and our experts will try to help you out as soon as possible.

Regards

 

  • 1
What are you looking for?