Question

a body of mass 4 kg moving with a velocity of 9 metre per second collides directly with a body of 1 kg at the co efficient of restitution is 0.33 after collision the velocity of the body of 4 kg is​

Answer 1

Answer:

v=7.2m/s

Explanation:

as because coefficient of restitution is 0<e<1 so it's inelastic collision.

therefore by the law of conservation of momentum v=m1u1÷m1+m2

v= 4×9÷(1+4)

v=36/5= 7.2m/sec