A body is projected vertically up with certain velocity. The ratio of velocity of projection to velocity at a point in its path is 6:5. The ratio of potential to kinetic energies at that point is
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a
9:25
b
1:4
c
11:36
d
11:25
answer is D.
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Detailed Solution
uv=65⇒u2v2=3625 K. E at that point = 2536× Initial K.EP. E at that point = (1−2536)× initial K.E= 1136×KEi PEKE=11362536=11:25