# Civil Engineering - Applied Mechanics - Discussion

### Discussion :: Applied Mechanics - Section 2 (Q.No.3)

3.

Newton's law of Collision of elastic bodies states that when two moving bodies collide each other, their velocity of separation

 [A]. is directly proportional to their velocity of approach [B]. is inversely proportional to their velocity of approach [C]. bears a constant ratio to their velocity of approach [D]. is equal to the sum of their velocities of approach.

Explanation:

No answer description available for this question.

 Chinu said: (Jan 20, 2017) Please explain it.

 Suresh Reddy said: (Mar 22, 2019) Coefficient of restitution "e"= [relative velocity of separation/relative velocity of approach] For perfectly elastic there is no lose in bombardment.=> e=1,;;;;; Where e is b/w 0

 Atharva Kale said: (Sep 25, 2020) Here, For Elastic body; sep. vel = approach velocity. So, as sep vel. increases then approach velocity also increases. And also e = 1 = s.v/a.v. So the output should be both A & C.