Chapter 5.PS, Problem 9PS

To determine

a)

To find:

The simplified equation of the model of the force F (in pounds) modeled by $F=\frac{0.6W\sin \left(\theta +{90}^{\circ }\right)}{\sin {12}^{\circ }}$ for a person who bends over at an angle $\theta$ from an upright position.

To determine

b)

To graph:

The model of the force F (in pounds) modeled by $F=\frac{0.6W\sin \left(\theta +{90}^{\circ }\right)}{\sin {12}^{\circ }}$ for a person who bends over at an angle $\theta$ from an upright position where $W=185\text{ and }{0}^{\circ }<\theta <{90}^{\circ }$ using graphing utility.

To determine

c)

To find:

The angle at which the force is maximum and the angle at which the force is minimum for a model of the force F (in pounds) modeled by $F=\frac{0.6W\sin \left(\theta +{90}^{\circ }\right)}{\sin {12}^{\circ }}$ for a person who bends over at an angle $\theta$ from an upright position.