JIPMER2019PhysicsCenter of Mass, Momentum and Collision
Two objects of mass m each moving with speed u~m / s collide at 90^ , then final momentum is (assume collision is inelastic)
Options
- Am u
- B2 m u
- C2 m u
- D2 2 mu
Correct answer
C. 2 m u
Step-by-step solution
Speed of objects =4 ~m / s Since, both objects collide with 90^ . Hence, by the law of conservation of momentum, Total moment before collision = total momentum after collision aligned muî + mu j | & = P _ f m ^2 u ^2+ m ^2 u ^2 & = P _ f P _ f & = 2 mu aligned