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Get Full Access to University Physics - 13 Edition - Chapter 6 - Problem 7e
Get Full Access to University Physics - 13 Edition - Chapter 6 - Problem 7e

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# Two blocks are connected by a very light string passing ISBN: 9780321675460 31

## Solution for problem 7E Chapter 6

University Physics | 13th Edition

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Problem 7E

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 block moves 75.0 cm down-ward. How much work is done (a) 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.

Step-by-Step Solution:

Solution 7E Step 1: As the figure shows, The 12 N force moves downward and got displaced by 75 cm = 0.75 meters. Gravitational force is acting downwards with a magnitude of 12 N. As we know that, work is, 0 W = Fds = 12 × 0.75 × cos 0 = 9 jules. The work done by the gravitational force is 9 jules.

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##### ISBN: 9780321675460

University Physics was written by and is associated to the ISBN: 9780321675460. The answer to “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 block moves 75.0 cm down-ward. How much work is done (a) 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.” is broken down into a number of easy to follow steps, and 94 words. Since the solution to 7E from 6 chapter was answered, more than 4141 students have viewed the full step-by-step answer. This textbook survival guide was created for the textbook: University Physics, edition: 13. This full solution covers the following key subjects: Block, string, done, work, much. This expansive textbook survival guide covers 26 chapters, and 2929 solutions. The full step-by-step solution to problem: 7E from chapter: 6 was answered by , our top Physics solution expert on 05/06/17, 06:07PM.

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