A painter (mass 50.0 kg) is walking along a trestle, consisting of a uniform plank (mass 17.4 kg, length 6.00 m) balanced on two sawhorses. Each sawhorse is placed 1.40 m from an end of the plank. A paint bucket (mass 4.00 kg, diameter 0.280 m) is placed as close as possible to the right-hand edge of the plank while still having the whole bucket in contact with the plank. How close to the left-hand edge (distance from the RH edge) of the plank can the painter walk before tipping the plank and spilling the paint?

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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.