We know, I =mr2. This is the relation between moment of inertia (I) and mass (m). Hence, the moment of inertia (I) is the counter part of the mass in rotational motion.
Again, Torque = F x r. This is relation between torque and linear force. Hence, torque is the counter part of the force in rotational motion.
What is the counterpart of the mass and force in rotational motion?
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