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in Physics by (33.0k points)

Two balls of same mass are projected one vertically upwards and the other at angle 60°. with the vertical. The ratio of their potential energy at the highest point is 

(a) 3:2 

(b) 2:1 

(c) 4:1 

(d) 4: 3

1 Answer

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Best answer

Answer is (c) 4:1 

Potential energies at the highest point are equal to the loss in kinetic energies. That is (1/2 mu2) and (1/2) m(u cos60°) = (1/4) x (1/2)mu2

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