A smooth sphere is moving on a horizontal surface with velocity vector `3hat(i) + hat(j)` immediatel
Channel: Doubtnut
Date: 2020-01-28

A smooth sphere is moving on a horizontal surface with velocity vector `3hat(i) + hat(j)` immediately before it hits a vertical wall. The wall is parallel to the vector `hat(j)` and the coefficient of restitution between the wall and sphere is `(1)/(3)`. The velocity vector of the sphere after it hits the wall is :-