How to determine the direction of velocity after elastic collision of 2 object m1 m2 and velocity v1 v1

Question

How to determine the direction of velocity after elastic collision of  2 object m1 m2 and velocity v1 v1

akashdeepdeb · Answer

WELCOME TO OPENSTUDY!! :D

anonymous · Answer

it depends on the + or - sign. If u let ur initial velocity towards the right hand side as + then your left hand side one would be -. So it is the same for your final velocity, if u initially let your (right) initial velocity as positive then if your final is - then the objects are heading to left and vice versa

jt950 · Answer

Using the formula v1=(m1-m2)/(m1+m2)u1+(2m2)/(m1+m2)u2
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