Question

A train moves with a velocity of 30 ms^-1. A boy on the upper berth drops a ball of mass 100 g ,the K.E of the ball with respect to
I) a person on the ground and ii) for person sitting in the train at the time of dropping​
a) 45 J , 0J b) 0 J 45 J c) 22.5 J 22.5 J d) 45 J 45 J

Answer 1

Answer:

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