A light rod 1.50 m long can rotate about a point located 0.30 m from its left end
PHYSICS · Subjective · A Level · Physics · Mechanics and materials · Mechanics and materials
Problem
A light rod 1.50 m long can rotate about a point located 0.30 m from its left end. Three forces act on the rod:
• 25 N downward at the left end,
• 18 N at the right end directed 40° above the rod,
• 16 N downward at a point 0.60 m to the right of the pivot.
With counter-clockwise torques defined as positive, calculate the net torque about the pivot.