An object is released from a height twice the radius of the earth on the surface of earth. Find the speed with which it will collide with ground by neglecting effect of air. (Take, R as radius of earth and M as mass of earth)
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
The initial potential energy 
of object,
Final potential energy, 
By law of conservation of energy, 
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