Answer
$10.6 Nm$
Work Step by Step
$| \tau|=|r \times f|= |r||f|sin \theta$
Given: $r$=18 cm =0.18 m, $f=60 N,\theta=80 ^ \circ$
$| \tau|=|r \times f|= |r||f|sin \theta$
$=0.18 \cdot 60 \cdot sin (80 ^ \circ)$
$ \tau =10.6 Nm$
Calculus 8th Edition
by Stewart, James
Published by
Cengage
ISBN 10:
1285740629
ISBN 13:
978-1-28574-062-1
Chapter 12 - Vectors and the Geometry of Space - 12.4 The Cross Product - 12.4 Exercises - Page 862: 39
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