Question: Problem 4: The athlete in the figure below uses a cable machine for working out. The athlete is exerting a constant force of 100

Problem 4: The athlete in the figure below uses a cable machine for working out. The athlete is exerting a constant force of 100 N (leftwards) onto handle A. If handle A started at rest and reached a speed of 3 m/s when it has been pulled a distance of 30 cm, find: (a) The acceleration of the handle A. (b) The acceleration of the weight stack B. (c) The weight of the stack at B. Hint: Consider the following: 1. You need to find the acceleration of handle A using kinematics equations. 2. Find a relationship between the pulling force and the tension in the cord. 3. Find the FBD about the stack at B. 4. Find the relationship between the acceleration of handle A and the acceleration of the weight stack at B using pulley equations. You might want to consider some datum for the system. Check your solutions: (a) = 15 m/s +, (b) B 3.75 m/s 1, (c) mg = 29.5 Kg.

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