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 - Questions - Page 116: 9b

Answer

Cord 3 is accelerating 18kg of mass.

Work Step by Step

Cord 3 is getting pulled by force F and the 2kg block. It is pulling the 5kg, 3kg, and 10 kg blocks. The total mass of these three blocks is the total mass that the cord accelerates. 5+3+10=18.
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