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Question: A particle is projected horizontally from the top of a cliff of height H with a speed \(\sqrt{2gH}\)...

A particle is projected horizontally from the top of a cliff of height H with a speed 2gH\sqrt{2gH}. The radius of curvature of the trajectory at the instant of projection will

A

H2\frac{H}{2}

B

H

C

2H

D

∞

Answer

2H