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IIT JEE Advanced 2007 Paper 1
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Question : 13
Total: 66
STATEMENT-1: In an elastic collision between two bodies, the relative speed of the bodies after collision is equal to the relative speed before the collision
because
STATEMENT-2: In an elastic collision, the linear momentum of the system is conserved.
Statement-1 is True, Statement-2 is True; Statement-2 is a correct explanation for Statement-1.
Statement-1 is True, Statement-2 is True; Statement-2 is NOT a correct explanation for Statement-1.
Statement-1 is True, Statement-2 is False.
Statement-1 is False, Statement-2 is True.
Validate
Solution:
We know that
v
1
−
v
2
=
−
e
(
µ
−
µ
2
)
Since coefficient of restitution e = 1 for elastic collision, we get
v
1
−
v
2
=
−
(
µ
−
µ
2
)
The linear momentum is conserved in both types of collisions: elastic or inelastic collisions.
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