Question

Which physical quantity does play the same role in rotational motion as the force plays in the linear motion?

Answer 1

Answer:

Torque

Explanation:

Torque on a body plays the same role in rotational motion as the force on the body plays in the linear motion. The torque applied to the body produces angular acceleration to the body. Force on the body causes linear motion of the body while torque causes rational motion of the body. In the law of linear motion, we use force in the formula while we use torque in the calculation of quantity in rotational motion.