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A particle is projected vertically upwards with a speed V0 from the surface of the earth. The maximum height reached by the particle is equal to radius R of the earth. If g be the acceleration due to gravity on the surface of the earth, then :

a
v02<2gR
b
v02>2gR
c
v02=2gR
d
v02=gR

detailed solution

Correct option is D

−mgR+12mv02=−mgR2+0⇒v02=gR

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