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AP Physics 1
5.5 Rotational Equilibrium and Newton’s First Law in Rotational Form
5.3 Torque
IntermediateMCQMathematical31.9k
Two concentric wheels of radii 3R and 2R with four tangential forces on their rims.
Two concentric wheels of radii 3R and 2R with four tangential forces on their rims.
A system of two wheels fixed to each other is free to rotate about a frictionless axis through the common center of the wheels and perpendicular to the page. Four forces are exerted tangentially to the rims of the wheels, as shown in the figure. The magnitude of the net torque on the system about the axis is

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