Work Energy and Power - Result Question 69
72. The co-efficient of restitution e for a perfectly elastic collision is
(a) 1
(b) 0
(c) $\infty$
(d) -1
[1988]
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Answer:
Correct Answer: 72. (a)
Solution:
- (a) $e=|v_1-v_2| /|u_1-u_2|$ which is 1 for a perfectly elastic collision.
