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: 5c

Answer

x = 0m

Work Step by Step

The position is given by the equation $ x = 3t - 4t^2 + t^3 $ where x is in meters and t is in seconds To find the position at t = 3 s we need to find x(3), or in other words, plug in 3 for t in the equation. This gives us $ x = 3(3) - 4(3)^2 + (3)^3 = 9 - 4*9 + 27 = 0 $ Therefore x = 0m
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