Climbers attempting to cross a stream place a 340-kg log against a vertical, frictionless ice cliff on the opposite side (as illustrated in the Figure below). The log slopes up at 27 degrees and its center of gravity is one-third of the way along its 6.3-m length (as marked in the Figure). If the coefficient of friction of the log and the ground is 0.92, what’s the maximum mass of climber and pack to cross without the log slipping?

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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.