A body moving towards a finite body at rest collides with it. It is possible that
(a) both the bodies come to rest
(b) both the bodies move after collision
(c) the moving body comes to rest and the stationary body starts moving
(d) the stationary body remains stationary, the moving body changes its velocity.
Answers
Explanation:
both the bodies come to rest
both the bodies move after collision
the moving body comes to rest and the stationary body starts moving
the stationary body remains stationary, the moving body changes its velocity
Answer :
B::C
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A body moving towards a finite body at rest collides with it. It is possible that both the bodies move after collision and the moving body comes to rest and the stationary body starts moving
Explanation:
Because one of the bodies has some velocity before collision, thus, the bodies ' overall momentum is nonzero. Because total momentum is conserved in the absence of external force, both bodies can not come to rest. Because then there will be zero overall momentum. (A) that's not true. The final momentum could be equal to the initial momentum in both options (b) and (c). Since the overall momentum does not remain the same since before the collision, choice (d) is not possible.