A solid sphere rolls without slipping on a rough horizontal floor, moving with speed v. It makes an elastic collision with a smooth vertical wall. After impact,
(A) It will move with speed v initially
(B) Its motion will be rolling without slipping
(C) Its motion will be rolling without slipping initially and its rotational motion will stop momentarily at some instant
(D) Its motion will be rolling without slipping only after some time
Note: This is a multiple choice correct question. Answers void of explanation are ought to be reported.
Answers
Answered by
2
after elastic collision energy remains conserved and v=wr (no slipping) and also momentum is conserved after the collision mv=mv+0(wall) as initial velocity is equal to final velocity option a is correct
Divyankasc:
Please rephrase the answer properly
you need to keep all this points remembered when there is elastic collision
the answer is momentum remains conserved after the collision mv=mv'+0. so v' =v initial velocity is equal to final velocity
Answered by
35
According to me it should have 3 option as answer which are option (A), (B) and (D) because the impact force at the wall will be normal to the point of contact and the impact is elastic so there will be no loss in energy thus the velocity will not change also weight doesn't change therefore motion will be slipping but due to friction solid sphere will start slipping after sometime.
Have a jolly time Divyankasc
Have a jolly time Divyankasc
Similar questions