A ball is projected vertically upwards with a certain initial speed. Another ball of the same ma...

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A ball is projected vertically upwards with a certain initial speed. Another ball of the same mass is projected at an angle of \( 60^{\circ} \) with the vertical with the same initial speed. At highest points of their journey, the ratio of their potential energies will be
[AMU PMT 2009]
(a) \( 1: 1 \)
(b) \( 2: 1 \)
(c) \( 3: 2 \)
(d) \( 4: 1 \)
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