A) \[mgR/2\]
B) \[2mgR\]
C) \[mgR\]
D) \[mgR/4\]
Correct Answer: C
Solution :
The kinetic energy required to project a body of mass m from earths surface to infinity is known as escape energy. Therefore, \[K.E.=\frac{G{{M}_{e}}m}{R}\] \[=mgR\] \[\left( \because gR=\frac{G{{M}_{e}}}{R} \right)\]You need to login to perform this action.
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