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The kinetic energy of a body becomes fou...

The kinetic energy of a body becomes four times its initial value.The new linear momentum will be:

A

Becomes twice its initial value

B

Become three times its initial value

C

Become three times its initial value

D

Remains constant

Text Solution

Verified by Experts

The correct Answer is:
A

`P=sqrt(2mE)therefore P prop sqrt(E )` i.e. if kinetic energy becomes four time then new momentum will become twice.
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Knowledge Check

  • The kinetic energy of a body because four times its initial value ..The new linear momentum will be

    A
    eight times that of initial value
    B
    four times that of initial value
    C
    twice of the initial value
    D
    remain as the initial value
  • The density of a body because four times its initial value .The new linear momentum will be

    A
    `10^(-4)`
    B
    `10^(-2)`
    C
    `10^(-1)`
    D
    `10^(2)`
  • If the KE of a body becomes four times its initial value, then the new momentum will be more than its initial momentum by :

    A
    0.5
    B
    1
    C
    1.25
    D
    1.5
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