A smooth sphere of mass 2 kg is moving on a horizontal surface with a velocity of 2i + 2jms^{-1} . It hits a vertical wall parallel to j^{\^}. If the coefficient of restitution is 1/2 the velocity of sphere after it hits the wall in is.

JEE Mains Model Paper 1

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A smooth sphere of mass 2 kg is moving on a horizontal surface with a velocity of 2i + 2jms−1 . It hits a vertical wall parallel to

. If the coefficient of restitution is

the velocity of sphere after it hits the wall in is.

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