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In an elastic collision between two part...

In an elastic collision between two particles

A

the total kinetic energy of the system is always conserved.

B

the kinetic energy of the system before collision is equal to the kinetic energy of the system after collision.

C

the linear momentum of the system is conserved.

D

the mechanical energy of the system before collision is equal to the mechanical energy of the system after collision.

Text Solution

Verified by Experts

The correct Answer is:
B, C, D
In a elastic collision, linear momentum of the system ws always conserved i.e., the in all the three stages of collision. But the kinetic energy of the system is not always conserved. It is conserved only before and after the collision. During collision it gets converted into potential energy.
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Knowledge Check

  • In elastic collision

    A
    both momentum and kinetic energy are conserved.
    B
    both momentum and kinetic energy are not conserved.
    C
    only mechanical energy is conserved.
    D
    only momentum is conserved.

  • In elastic collision,

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    K.E. and linear momentum are conserved.
    B
    linear momentum is conserved
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    K.E. conserved
    D
    neither K.E. nor momentum is conserved

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    A
    Statement-1 is True, Statement-2 is True, Statement-2 is a correct explanation for Statement-1.
    B
    Statement-1 is True, Statement-2 is True, Statement-2 is NOT a correct explanation for Statement-1
    C
    Statement-1 is True, Statement-2 is False.
    D
    Statement-1 is False, Statement-2 is True.

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