A body is moving with a velocity v, breaks up into two equal parts.One of the part retraces back with velocity v. Then the velocity of the other part is ? :-
(A) v in forward direction
(B) 3v in forward direction
(C) v in backward direction
(D) 3v in backward direction
(A) v in forward direction
(B) 3v in forward direction
(C) v in backward direction
(D) 3v in backward direction
1 Answer
Feb 4, 2018
B.
Explanation:
As,no external force is acting here,we can apply the law of conservation of momentum.
Initial momentum =
Considering initial direction of movement of the whole mass to be positive.
Final momentum =
So,we can say,
So,