A sphere of mass m has velocity 4î- j ^ \hat{j} j ^ before hitting a smooth wall and rebounds with velocity î+3 j ^ \hat{j} j ^ .The impulse and coefficient of restitution are:
Physics · Center of maas , Momentum and Collision · collision and types of collision
JEE Advanced

Question

A sphere of mass m has velocity 4î- j ^ \hat{j} j ^ ​ before hitting a smooth wall and rebounds with velocity î+3 j ^ \hat{j} j ^ ​ .The impulse and coefficient of restitution are:

G1 Physics · Accepted Answer

Use conservation of linear momentum together with e = (relative speed of separation)/(relative speed of approach). Solving the two collision equations gives A: m(-3i+4j), e=9/16.

A sphere of mass m has velocity 4î- j ^ \hat{j} j ^ ​ before hitting a smooth wall and rebounds with velocity î+3 j ^ \hat{j} j ^ ​ .The impulse and coefficient of restitution are:

A sphere of mass m has velocity 4î- j ^ \hat{j} j ^ before hitting a smooth wall and rebounds with velocity î+3 j ^ \hat{j} j ^ .The impulse and coefficient of restitution are: