An elevator car lift is moving upward with uniform acceleration of 2 m s At the instant when its velocity is 2 m s upwards a

Question

An elevator car lift is moving upward with uniform acceleration of 2 m s At the instant when its velocity is 2 m s upwards a ball is thrown upward from its floor The ball strikes back the floor 2 s after its projection Find the velocity of projection of the ball relative to the lift A 10 m s B 10 m s C 12 m s D 12 m s

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