5. The two blocks in the figure below are connected by a massless rope that passes over a pulley. The pulley is 15 cm in diameter and has a mass of 3.0 kg. As the pulley turns, friction at the axle exerts a torque of magnitude 0.75 m N. If the blocks are released from rest, with what speed does the 4.0 kg block hit the floor? (Hint: You can approach this problem two ways: 1) Enumerating the forces and torques acting on the blocks and pulley and using Newton's second law to determine the acceleration of the system. 2) Use conservation of energy, taking into account work done by friction. Do it both ways and show that you get the same answer!) 4.0 kg 1.0 m 2.0 kg

5. The two blocks in the figure below are connected by a massless rope that passes over a pulley. The pulley is 15 cm in diameter and has a mass of 3.0 kg. As the pulley turns, friction at the axle exerts a torque of magnitude 0.75 m N. If the blocks are released from rest, with what speed does the 4.0 kg block hit the floor? (Hint: You can approach this problem two ways: 1) Enumerating the forces and torques acting on the blocks and pulley and using Newton's second law to determine the acceleration of the system. 2) Use conservation of energy, taking into account work done by friction. Do it both ways and show that you get the same answer!) 4.0 kg 1.0 m 2.0 kg

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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