Answer
$28N$
Work Step by Step
We can find the required force as
$F=\frac{m(a+gsin\theta)}{cos\theta}$
We plug in the known values to obtain:
$F=\frac{7.5Kg(1.41m/s^2+(9.81m/s^2)sin13^{\circ})}{cos13^{\circ}}$
$F=28N$
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 141: 27
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