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If net external force acting on the syst...

If net external force acting on the system is zero then

A

Velocity of the individual particle of the system will remain constant

B

Velocity of the center of mass of the system will remain constant

C

Velocity of the center of mass of the system will be zero

D

Velocity of the individual particle of the system will be zero

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The correct Answer is:
c
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Knowledge Check

  • If the net external force acting on a system is zero, then the centre of mass?

    A
    must not move
    B
    must not accelerate
    C
    may move
    D
    may accelerate

  • If the net external forces acting on the system oif particles is zero, then which of the following may vary?

    A
    Momentum of the system
    B
    Velocity of center of mass
    C
    Position of center of mass
    D
    None of the above

  • STATEMENT-1 : Acceleration of a particle in a reference frame may be non- zero , even if net external force acting on the particle is zero. and STATEMENT : 2 In a non- - inertial reference frame, Newton's second law is not valid.

    A
    Statement -1 True, Statement -2 is True , Statement - 2 is a correct explanation for Statement -7
    B
    Statement -1 is True , Statement -2 is True , Statement -2 is NOT a correct explanation for statement -7
    C
    Statement -1 is true, Statement -2 is False
    D
    Statement - 1 is False , Statement - 2 is True

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    If no external force acts on a system

    The velocity of centre of mass of the system remains constant, if the total external force acting on the system is.

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