Question
Question: Find the work done to take a particle of mass m from surface of the earth to a height equal to 2R....
Find the work done to take a particle of mass m from surface of the earth to a height equal to 2R.
A
2mgR
B
mgR/2
C
3mgR
D
2mgR/3
Answer
2mgR/3
Explanation
Solution
W = ∆PE = GMm 
= 