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MHT CET Physics question

PhysicsGravitationMHT CET

A body of mass 'm' is dropped from a height R/2, to the surface of earth where 'R' is radius of earth. It's speed when it will hit the earth's surface is ( = escape velocity from earth's surface) [MHT-CET 2020]

Answer: (C)

Solution

Energy conservation: , so $ = =

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Question ID VK-060379