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The diagram to the right shows the veloc...

The diagram to the right shows the velocity-time graph for two masses `R` and `S` that collided elastically. Which of the following statements is true?
[I] `R` and `S` moved in the same direction after the collision.
[II] Kinetic energy of the system (R & S) is minimum at `t=2` milli sec.
[III] The mass of `R` was greater than mass of `S`.

A

I only

B

II only

C

I and II only

D

I,II,only III

Text Solution

Verified by Experts

The correct Answer is:
D
(i) From graph final velocity of both body is positive.
(ii) K.E. is minimum when velocity of each body becomes equal.
(iii) Magnitude of change in velocity of `R` is less.
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