An 80-N Uniform Plank Leans Against a Frictionless Wall as Shown

question 34

Multiple Choice

An 80-N uniform plank leans against a frictionless wall as shown. The torque (about point P) applied to the plank by the wall is:

• A) 40 N.m
• B) 60 N.m
• C) 120 N.m
• D) 160 N.m
• E) 240 N.m

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Definitions:

BMI

Body Mass Index, a measure of body fat based on height and weight that applies to adult men and women.

Secondary Sex Characteristics

Physical traits that emerge during puberty, which are not directly involved in reproduction but distinguish between the sexes, such as breast development in females and facial hair in males.

Masculinity

A set of attributes, behaviors, and roles associated with boys and men as expressed by society, culture, and individuals.

Femininity

A set of attributes, behaviors, and roles generally associated with girls and women by a society.