A Horizontal, 10-M Plank Weighs 100 N

question 24

Multiple Choice

A horizontal, 10-m plank weighs 100 N.It rests on two supports that are placed 1.0 m from each end as shown in the figure.How close to one end can an 800-N person stand without causing the plank to tip?

• A)0 m
• B)0.3 m
• C)0.5 m
• D)0.7 m
• E)0.9 m

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Definitions:

Social Support

The assistance and comfort received from friends, family, and others, which is critical for maintaining psychological and physical health.

Heart Disease

A broad term for various conditions affecting the heart and blood vessels, often related to atherosclerosis or plaque buildup in arterial walls.

Hostility

Feelings of anger, aggression, and resentment that may result in confrontational behavior.

Coronary Disease

A heart condition characterized by the narrowing of the coronary arteries due to the buildup of plaque, leading to a decrease in blood flow to the heart muscle and potential heart attack.