JEE Main & Advanced
Sample Paper
JEE Main - Mock Test - 21
question_answer
A small sphere of mass 1 kg is moving with a velocity\[(6\hat{i}+\hat{j})m{{s}^{-1}}.\]. It hits a fixed smooth wall and rebound with velocity\[(4\hat{i}+\hat{j})m{{s}^{-1}}\]. What is the coefficient of restitution between the sphere and the wall?