Question

10.237. The masses of two balls are in the ratio of 2:1 and
their respective velocities are in the ratio of 1 : 2 but
in the opposite direction before impact. If the coeffi-
cient of restitution is 1, the velocities of separation
of the balls will be equal to
(a) original velocity in the same direction
(6) half the original velocity in the same direction​

Answer 1

Explanation:

Don't know the answer

• but thanks for the points

Answer 2

Answer: half the original velocity in opposite direction.

Explanation: m(2u) + 2m(-u) = - mv1 + 2mv2

Here we are considering that upon Collison the bodies went in opposite directions. If wrong we will get negative for the velocities which means our assumption can be modified.

So upon solving above we get

2v2 = v1

And e(2u-u) = v1-v2

u/2 = v1-v2

So upon solving we get v1 = u and v2 = u/2