Fundamentals of Physics Extended (10th Edition)

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

Chapter 2 - Motion Along a Straight Line - Problems: 46a

Answer

183 m/s

Work Step by Step

The raindrops fall 1700m and are initially at rest so that v0 = 0m/s. The acceleration on them is that due to gravity, which is $ -9.81 m/s^2 $ We use the equation: $v^2 = v0^2 + 2a\Delta x $ $v^2 = 0^2 + 2(-9.81)(-1700m) $ ($\Delta x$ is negative because the final height is 0m and the initial height is 1700m so that final height - initial height = -1700m) We find that v = 183 m/s
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