Question

A body is projected vertically up with certain velocity. At a point 'P' in its path, the ratio of its potential and kinetic energies is 15:49. The ratio of velocity of projection to velocity at P is (A) 7:8 (B) 8:7 (C) 5:4 (D) 5:7
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Answer 1

A body is projected vertically up with certain velocity. At a point 'P' in its path, the ratio of its potential and kinetic energies is 15:49. The ratio of velocity of projection to velocity at P is 5:4