15. A bodybuilder holds a dumbbell of weight Wd. His arm is horizontal and weighs 40 N. The deltoid muscle is assumed to be the only muscle acting and is attached to the arm as shown. The maximum force M→ that the deltoid muscle can supply has a magnitude of 2579 N. The distances that locate where the various forces act on the arm. What is the weight of the heaviest dumbbell that can be held by the bodybuilder? Note: Express your answer in whole numbers. No unit is required for the final answer. M -13.0° W 0.150 m 0.280 m 0.620 m (b) Free-body diagram of the arm +x M Deltoid Dumbbell 13.0° muscle Axis W.

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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.