Final answer:
A backpack exerts compression force on the body's back and hips.
Step-by-step explanation:
Physics
A backpack exerts compression force on the body's back and hips. Compression force occurs when the backpack pushes against the body, causing it to compress or squeeze together. This force is directed inward, towards the center of the body, and is the opposite of tension force which pulls or stretches the body outward.
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