Momentum and CollisionHard
Question
Three objects A, B and C are kept in a straight line on a smooth horizontal surface as shown in figure. The object A is given velocity V0 towards B. The head on clastic collision takes place between A and B and then B makes completely inelastic collision with C. All motions occur on the same straight line. The final speed of C will be :
Options
A.
B.
C.
D.
Solution
For collision between A and B
mv0 = mv1 + 2mv2 ....(1)
e =
= 1 ....(2)
Solving we get, v2 =
For collision between B and C
2m ×
= (2m + 3m) v
V =
mv0 = mv1 + 2mv2 ....(1)
e =
= 1 ....(2)Solving we get, v2 =
For collision between B and C
2m ×
= (2m + 3m) vV =
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