A 55-kg child sits on a 1.1-m radius playground merry-go-round without holding on to the rails.  a. Someone pushes tangentially, resulting in a torque of 356 N m. How fast is the merry-go round moving (in m/s)?  If the child begins to slip off the merry-go-round at this speed, what is the coefficient of  friction between the child and the surface?

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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.