Two children ride on a merry-go-round, with child 1 at a greater distance from the axis ofrotation than child 2, as shown in our sketch. (a) Is the angular speed of child 1 greater than,less than, or the same as the angular speed of child 2? (b) Which of the following is the bestexplanation for your prediction?I. Child 1 is moving faster than child 2, and hence has the greater angular speed.II. Child 2 is closer to the axis of rotation, which results in a greater angular speed.III. Both children complete a revolution in the same time, so their angular speeds are the same.

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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.