Q2) Machine Curls and the Biceps Muscle. A woman performs seated machine curls to strengthenher biceps muscles (the figure below). She uses a weight of 10 kg. Horizontal distance betweenher elbows (A) and the bottom of the frictionless pulley (B) is 60 cm. Vertical distance betweenthe same points is 20 cm. Determine the force exerted by the holding bar on the woman's handswhen her arm is at 45° with the horizontal. At that moment, the weight has an upward accelerationof 3 m/s2.DBDIA32cm20cmPAB4560cm

Given data: The horizontal distance between elbow and pulley is 0.6 m Verticle distance between…

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