JEE · NEET Previous Year Question
The coefficient of restitution for a perfectly elastic collision is
Topic: NEET PYQ
Answer: A. Full step-by-step solution below.
- A1
- B0
- C∞
- D-1
Correct answer: A
Solution
(a): Coefficient of restitution or resilience of two bodies is defined as the constant ratio of relative velocity after impact to the relative velocity of the bodies before impact when the two bodies collide head on. Their velocities are in the opposite directions.Thus constant
The constant is known as coeff. of restitution or resilience of two bodies. For a perfectly elastic collision, and for a perfectly inelastic collision, . Thus
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