AP EAMCET · PHYSICS · Center of Mass Momentum and Collision
A particle of mass , moving with a velocity makes an elastic collision in one dimension with a stationary particle of mass . During the collision, they remain in contact with each other for an extremely small time : Their force of contact, with time is shown in the figure. Then 
- A
- B
- C
- D
Answer & Solution
Correct Answer
(B)
Step-by-step Solution
Detailed explanation
In an elastic head-on collision between two particles, the velocity of the particle gets exchanged, therefore net change of momentum of a particle is, ∆p=m∆v=mv-0=mv From newton's second law, the rate of change of momentum is force.…
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