Answer
$107.58N$
Work Step by Step
The required force can be determined as follows:
$Fsin\theta+N=W$
We plug in the known values to obtain:
$Fsin25^{\circ}+180=23(9.81)$
$Fsin25^{\circ}=45.4$
$\implies F=\frac{45.4}{0.422}$
$F=107.58N$
Physics Technology Update (4th Edition)
by Walker, James S.
Published by
Pearson
ISBN 10:
0-32190-308-0
ISBN 13:
978-0-32190-308-2
Chapter 5 - Newton's Laws of Motion - Problems and Conceptual Exercises - Page 143: 44
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