Three forces act on a uniform circular plate free to rotate about a central axis…
PHYSICS · Subjective · AP · Physics 1: Algebra-based · Torque and Rotational Dynamics · Torque and Rotational Dynamics
Problem
Three forces act on a uniform circular plate free to rotate about a central axis perpendicular to its plane:
(i) A 15N force is applied tangentially at point A on the rim (0.20m from the centre) so as to produce counter-clockwise rotation.
(ii) A 10N force is applied tangentially at point B on the rim (0.20m from the centre) so as to produce clockwise rotation.
(iii) A 12N force is applied at point C on the rim along a line joining C to the centre.
Taking counter-clockwise torque as positive, calculate the net torque acting on the plate and state the sense (clockwise or counter-clockwise) of the resulting rotation.