STANDARD Physics Coefficient of Restitution MCQ Question
A ball of mass m moving with a speed 2v₀ collides head-on with an identical ball at rest. If e is the coefficient of restitution, then what will be the ratio of velocity of two balls after collision?
1 - e / 1 + e
1 + e / 1 - e
e - 1 / e + 1
e + 1 / e - 1
Correct Answer
Detailed Explanation
According to the law of conservation of linear momentum and the definition of the coefficient of restitution, the velocities after collision can be calculated. Solving the equations gives the ratio of velocities as (1 - e) / (1 + e).
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