A disk is initially rotating counterclockwise around a fixed axis with angular speed wo. At time t = 0, the two forces shown in the figure below are exerted on the disk, 20 N 40 N If counterclockwise is positive, which of the following could show the angular velocity of the disk as a function of time?

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Torque

Torque is the rotational equivalent of linear force in physics and mechanics. Based on the course of study, it is also known as the moment of force, rotational force, or turning effect.