Fundamentals of Physics Extended (10th Edition)

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

Chapter 6 - Force and Motion-II - Problems: 83c

Answer

1.87 $m/s^2$

Work Step by Step

If you continue to push with the force you did in part a (84.2N), then it means you have a net force of 84.2 - 52.8 = 31.4N. Then to find the acceleration we use F = ma so we need to find the mass of the crate. If the weight is 165N and Fg = mg then that means m = 16.8kg. This means a = 31.4N / 16.8kg = 1.87 $m/s^2$
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