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05-10-2022
Physics

Answered

a disc of mass 100 g is kept floating horizontally in air by firing bullets, each of mass 5 g with the same velocity at the same rate of 10 bullets per second. the bullets rebound with the same speed in opposite direction, the velocity of each bullet at the time of impact is: (a) 196 cm/s (b) 9.8 cm/s (c) 98 cm/s (d) 980 cm/s

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