9. In the pulley system shown, all the pulleys are massless and frictionless and the rope is of negligible mass. Aristotle wanted to raise the 262-newton weight to a height of 3.00 meters. (a) Find the magnitude of force F he needed to pull on the rope to move the weight upward with a constant velocity. (b) What was the mechanical advantage of the pulley system? (c) How far did he have to move his end of the rope? (d) How much work did he do? (e) How much work was done on the weight? 262 N

9. In the pulley system shown, all the pulleys are massless and frictionless and the rope is of negligible mass. Aristotle wanted to raise the 262-newton weight to a height of 3.00 meters. (a) Find the magnitude of force F he needed to pull on the rope to move the weight upward with a constant velocity. (b) What was the mechanical advantage of the pulley system? (c) How far did he have to move his end of the rope? (d) How much work did he do? (e) How much work was done on the weight? 262 N

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter10: Fixed-axis Rotation

Section: Chapter Questions

Problem 117AP: Two children push on opposite sides of a door during play. Both push horizontally and perpendicular...

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