Question

5. A particle of mass m moving in x-direction with
speed 2v is hit by another particle of mass an
moving in the y-direction with speed v. If the
collision is perfectly inelastic, the percentage of the
energy retained by the colliding particles after the
collision is close to
(1) 56%
(2) 80%
(3) 35%
(4) 44%​

Answer 1

Answer:

the answer is 80% 2 is the answer