In a one-dimensional collision between two identical particles A and B, B is stationary and A has momentum p before impact. During impact, B gives impulse J to A
A
The total momentum of the 'A plus B' system is p before and after the impact, and (p - J) during the impact.
B
During the impact, A gives impulse J to B.
C
The coefficient of restitution is 
- 1.
- 1.
D
The coefficient of restitution is 
+ 1.
+ 1.
Text Solution
Verified by ExpertsThe correct answer is:
CHECK THE SOLUTION.
(b, c)
Let u = speed of A before impact. Thus, p = mu.
Let v 1 , v 2 = speeds of A and B after impact.
u = v 1 + v 2 and v 1 – v 2 -= - eu
∴ ∴ v 1 = 
u (1 - e) and v 2 = 
u (1 + e)
J = mv 2 = m 
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