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NEET Exam Model Paper 10

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Question : 9

Total: 180

A particle of mass m is thrown upwards from the surface of the earth, with a velocity u. The mass and the radius of the earth are, respectively, M and R. G is gravitational constant and g is acceleration due to gravity on the surface of the earth. The minimum value of u so that the particle does not return back to earth is

√
2GM
R
√
2GM
R2
√2gR2
√
4GM
R2

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