A small sphere of mass 1 kg is moving with a velocity `(6hat(i)+hat(j))ms^(-1)`. It hits a fixed smooth wall and rebound with ve

A small sphere of mass 1 kg is moving with a velocity `(6hat(i)+hat(j))ms^(-1)`. It hits a fixed smooth wall and rebound with velocity `(4hat(i)+hat(j))ms^(-1)`. The coefficient of restitution between the sphere and the wall is
A. `3//2`
B. `2//3`
C. `9//16`
D. `4//9`

A small sphere of mass 1 kg is moving with a velocity `(6hat(i)+hat(j))ms^(-1)`. It hits a fixed smooth wall and rebound with velocity `(4hat(i)+hat(j

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