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Question

The rotational analogue of force is :


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Solution

Rational analogue: It is a force in a linear motion is torque.

Formula to calculate rational analogue:

τ=r×F

where τ is the torque, r is the radius of the rotatory motion, and F is the force applied.

  1. Force is necessary for a body to do translational motion.
  2. Similarly, it is torque that is required to rotate a body.
  3. If net torque applied to the body about the axis of rotation is zero, then the body does not rotate.

Hence, the rotational analogue of force is torque.


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