Question

Two equal masses are moving along the same
straight line with velocities +3 m/s and -5 m/s
respectively collide elastically. Their velocities after
the collision will be respectively
(1) +4 m/s for both
(2) -3 m/s and +5 m/s
(3) -4 m/s and +4 m/s
(4) -5 m/s and +3 m/s​

Answer 1

Answer:

(2).............. .... ...........

Answer 2

Answer:D

Explanation:

after elastic collision velocities of masses get interchanged

i.e., velocity of first mass = - 5 m/s

and velocity of second mass = + 3 m/s.