Question

A light body moving at some speed collides with a heavier body. Which of the following statements is true?

I. Heavier body applies a greater impulse on the lighter body.
II. The lighter body experiences a greater change of momentum.
III. Acceleration of the lighter body will be more than the acceleration of the heavier body.

• A. I and II only
• B. II only
• C. III only
• D. II and III only
• E. I, II, and III

Answer 1

The correct option is C III only

According to Newton's third law, the light and the heavier body, both experience same impulse. So I is false. From Newton's second law, the impulse is the change in momentum. So statement II also false. As $F=ma$ so the acceleration will be more for less mass. Thus, the lighter body will have more acceleration than that of the heavier body.