Question

in elastic collision, at the time of impact​

Answer 1

Answer:

total K.E. of colliding bodies is conserved. (b) total K.E. of colliding bodies increases(c) total K.E. of colliding bodies decreases(d) total momentum of colliding bodies decreases.

Answer 2

Explanation:

In a center of momentum frame at any time the velocities of the two bodies are in opposite directions, with magnitudes inversely proportional to the masses. In an elastic collision these magnitudes do not change. The directions may change depending on the shapes of the bodies and the point of impact.