Question

Particle A having positive charge is moving directly head on towards initially stationary positively charged particle B. At the instant when A and B are closest together.

• A. the momenta of A and B must be equal
• B. the velocities of A and B must be equal
• C. B would have gained less kinetic energy than A would have lost
• D. B would have gained the same momentum as A would have lost

Answer 1

Answer: (C), (D)

The correct options are
C B would have gained less kinetic energy than A would have lost
D B would have gained the same momentum as A would have lost