Physics (10th Edition)

Published by Wiley
ISBN 10: 1118486897
ISBN 13: 978-1-11848-689-4

Chapter 4 - Forces and Newton's Laws of Motion - Problems - Page 113: 2

Answer

The boat is accelerating to the west at $0.31m/s^2$.

Work Step by Step

1. Draw the free body diagram: ** I'm going to consider east as the positive x direction. 2. Now, calculate the net force: F = $(-4100N) + (800N) + (1200N) = -2100N$ 3, Now, calculate the aceleration. $F = ma$ $-2100 = 6800a$ Divide both sides by 6800: $\frac{-2100}{6800} = a$ $a = -0.31m/s^2$ So, the boat is accelerating to the west at $0.31m/s^2$.
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