6.7 • Two blocks are connectedFigure E6.7by a very light string passing overa massless and frictionless pulley(Fig. E6.7). Traveling at constantspeed, the 20.0 N block moves75.0 cm to the right and the 12.0 N20.0Nblock moves 75.0 cm downward.12.0(a) How much work is done onthe 12.0 N block by (i) gravityand (ii) the tension in the string?(b) How much work is done on the 20.0 N blocktension in the string, (iii) friction, and (iv) the normal force? (c) Find the(i) gravity, (ii) thetotal work done on each block.

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Description: 6.7 • Two blocks are connectedFigure E6.7by a very light string passing overa massless and frictionless pulley(Fig. E6.7). Traveling at constantspeed, the 20.0 N block moves75.0 cm to the right and the 12.0 N20.0Nblock moves 75.0 cm downward.12.0(a)

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6.7 • Two blocks are connected by a very light string passing over a massless and frictionless pulley (Fig. E6.7). Traveling at constant speed, the 20.0 N block moves 75.0 cm to the right and the 12.0 N Figure E6.7 20.0 N block moves 75.0 cm downward. 12.0 N (a) How much work is done on the 12.0 N block by (i) gravity and (ii) the tension in the string? (b) How much work is done on the 20.0 N block by (i) gravity, (ii) the tension in the string, (iii) friction, and (iv) the normal force? (c) Find the total work done on each block.

6.7 • Two blocks are connected by a very light string passing over a massless and frictionless pulley (Fig. E6.7). Traveling at constant speed, the 20.0 N block moves 75.0 cm to the right and the 12.0 N Figure E6.7 20.0 N block moves 75.0 cm downward. 12.0 N (a) How much work is done on the 12.0 N block by (i) gravity and (ii) the tension in the string? (b) How much work is done on the 20.0 N block by (i) gravity, (ii) the tension in the string, (iii) friction, and (iv) the normal force? (c) Find the total work done on each block.

Physics for Scientists and Engineers, Technology Update (No access codes included)

9th Edition

ISBN:9781305116399

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter7: Energy Of A System

Section: Chapter Questions

Problem 7.5P: A block of mass m = 2.50 kg is pushed a distance d = 2.20 m along a frictionless, horizontal table...

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