Question

A particle of mass M and velocity V hits a vertically wall normally. If it rebounds with the same speed then select the correct option(s) (2 Points) a) Final velocity is same as that of the initial velocity b) Final momentum is same as that initial momentum c) Change in magnitude of the momentum is zero for the whole process. d) Magnitude of the change in momentum is zero for the whole process.

Answer 1

Answer:

Initial velocity of body before collision   u=−V

where minus sign indicates the body moves towards the wall.

Initial momentum of the body  P  

i

​  

=Mu=−MV

Final velocity of body after collision   v=V

where positive sign indicates the body moves away from the wall.

Final momentum of the body  P  

f

​  

=Mv=MV

Change in momentum   ΔP=P  

f

​  

−P  

i

​  

=MV−(−MV)=2MV

Explanation:

I hope it is helpful .... plz- picks my answer as the Brainliest.