Fundamentals of Physics Extended (10th Edition)

Published by Wiley
ISBN 10: 1-11823-072-8
ISBN 13: 978-1-11823-072-5

Chapter 5 - Force and Motion-I - Problems: 13d



Work Step by Step

Looking at Disk D, we have to find all the forces acting on it. We have T3 pulling up and then the weight of Disk D is pulling downwards with a force of Md*g. Since the DIsk is not moving, it has no acceleration and so the net force on it (F=ma) is 0. This means that: 0 = T3 - Md*g and since g = 9.8 then Md = 1kg
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