Question

A ball is thrown vertically upward with a speed of 10.0 m/s.at the same instant another ball is released from rest at height h.at time t the speed of a relative to b

Answer 1

Answer:

Ball A - Uniform motion = u+vu+v upward

Ball B - Uniform speed = vv upward

=(u+v)−v=(u+v)−v

=u=u

Thus, ball B is seeing the ball A approaching it with constant speed u

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