Chapter
4
Newton's Three Laws
Part
3
Solution
for Example 3
From
the last example if the tire is stationary then the force add to
be zero.
Solving
for 
We
do not know one of the angles that is needed so we must use two
to find the angle.
First
use the y-components:
Then
we must find the angle for  .
It is  .
substituting
the known values
Now
use the x-components:
substituting
the known values
Then we need to solve for the angle.
We
then need to plug the value for the angle into the equation above
to find .
Therefore,
the magnitude of is
241 N because the only component is the y-component.
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