42 A smooth sphere is moving on a horizontal surface with velocity vector 2 i 2 jimmediately before it hits a vertical wall The

Question

42 A smooth sphere is moving on a horizontal surface with velocity vector 2 i 2 jimmediately before it hits a vertical wall The wall is parallel to j vector and the coefficient of restitution between the sphere and the 1 wall is e The velocity vector of the sphere after it 2 hits the wall is a c 1 21 d 21 1

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