A meter scale is moving with uniform velocity. This implies:

Physics Newton's Laws of Motion NCERT Examplar MCQ (Single Correct)

The force acting on the scale is zero, but a torque about the center of mass can act on the scale

The force acting on the scale is zero and the torque acting about center of mass of the scale is also zero

The total force acting on it need not be zero but the torque on it is zero

Neither the force nor the torque need to be zero

Text Solution

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The correct answer is:

We known that

Given that meter scale is moving with uniform velocity.

hence,
Force .
As all parts of the scale are moving with same velocity. So, the rod is not rotating. Hence, torque will also be zero.

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