The sketch shows a painter’s scaffold in mechanical equilibrium. The person in the middle weighs 500 N, and the tensions in each rope are 400 N. What is the weight of the scaffold?
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Solution: The below figure shows the middle the person standing weights is 500 N, The tension in the each rope is 400 N, We need to find the weight of the scaffold We see there is a total tension of each rope is 400 N + 400 N = 800 N 800 N pulling up and the total of 500 N + W pulling down. The net force is ero, because the system is in equilibrium. This means that the force down must equal the force UP, 500 N + W = 800 N We need to find the weight so rearrange the above equation as, W = 800 N - 500 N W = 300 N. Therefore, the weight of the scaffold W is 300 N.
Textbook: Conceptual Physics
Author: Paul G. Hewitt
This textbook survival guide was created for the textbook: Conceptual Physics, edition: 12. Conceptual Physics was written by and is associated to the ISBN: 9780321909107. This full solution covers the following key subjects: scaffold, Equilibrium, middle, painter, Person. This expansive textbook survival guide covers 45 chapters, and 4650 solutions. The answer to “The sketch shows a painter’s scaffold in mechanical equilibrium. The person in the middle weighs 500 N, and the tensions in each rope are 400 N. What is the weight of the scaffold?” is broken down into a number of easy to follow steps, and 33 words. The full step-by-step solution to problem: 3P from chapter: 2 was answered by , our top Physics solution expert on 04/03/17, 08:01AM. Since the solution to 3P from 2 chapter was answered, more than 473 students have viewed the full step-by-step answer.