A) \[mgR\]
B) \[\frac{3}{2}mgR\]
C) \[\frac{mgR}{2}\]
D) \[\frac{mgR}{4}\]
Correct Answer: C
Solution :
The gravitational potential energy of mass m in the gravitational field of mass M at a distance R from centre of earth is \[{{U}_{i}}=-\frac{GMm}{R}\] If mass m is raised to a height R from earths surface. Then final potential energy of mass m is \[{{U}_{f}}=-\frac{GMm}{R+R}=-\frac{GMm}{2R}\]You need to login to perform this action.
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