A force of 89 N is exerted 28° north of east. What is the eastward component of this force?

1 answer

To find the eastward component of the force, you can use the cosine of the angle. The formula for the eastward component \(F_{\text{east}}\) is given by:

\[ F_{\text{east}} = F \cdot \cos(\theta) \]

where:

  • \(F\) is the total force (89 N),
  • \(\theta\) is the angle (28°).

Now, calculate the eastward component:

\[ F_{\text{east}} = 89 , \text{N} \cdot \cos(28^\circ) \]

Using a calculator to find \(\cos(28^\circ)\):

\[ \cos(28^\circ) \approx 0.8829 \]

Now multiply:

\[ F_{\text{east}} \approx 89 \cdot 0.8829 \approx 78.49 , \text{N} \]

Thus, the eastward component of the force is approximately 78.49 N.