Answer
$-19.0 W$
Work Step by Step
so,
$F=(-8.00N) i + (3.00 N) j$
$v= (\frac{3.20m}{s}) i + (\frac{2.20 m}{s})j$
So now using the defination of dot product :
$P= F .v= (-8.00)(3.20) + (3.00) 82.20)
=-19.0 W$
University Physics with Modern Physics (14th Edition)
by Young, Hugh D.; Freedman, Roger A.
Published by
Pearson
ISBN 10:
0321973615
ISBN 13:
978-0-32197-361-0
Chapter 6 - Work and Kinetic Energy - Problems - Exercises - Page 198: 6.60
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