To Determine the Location of the Center of Mass (Or

question 51

Multiple Choice

To determine the location of the center of mass (or center of gravity) of a car,the car is driven over a scale on a horizontal floor.When the front wheels are over the scale,the weight recorded by the scale is 5800 N,and when the rear wheels are over the scale,the scale reads 6500 N.The distance between the front and rear wheels is measured to be 3.20 m.How far behind the front wheels is the center of mass located?

• A)0.845 m
• B)1.50 m
• C)1.59 m
• D)1.69 m
• E)1.72 m

---

Definitions:

Transverse Abdominal

A muscle layer of the anterior and lateral abdominal wall, important for stabilizing the core.

Latissimus Dorsi

A large, flat muscle on the back that helps with the movement of the shoulders and arms, including rotation and pulling movements.

Trapezius

A large superficial muscle that extends longitudinally from the occipital bone to the lower thoracic vertebrae and laterally to the spine of the scapula, involved in moving the shoulder and neck.

Pectoralis Major

A large muscle in the upper chest that performs functions related to the movement of the shoulder joint, including flexion, adduction, and medial rotation.