Fundamentals of Physics Extended (10th Edition)

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

Chapter 3 - Vectors - Problems: 3a

Answer

$A=47.2m$

Work Step by Step

Use Pythagorean theorem to find the length of the vector, since the two component vectors are perpendicular. $$a^2+b^2=c^2$$ $$A_x^2+A_y^2=A^2$$ $$(-25.0m)^2+(40.0m)^2=A^2$$ $$A=\sqrt{(40.0m)^2+(-25.0m)^2}$$ $$A=47.2m$$
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