A Child Pulls a 3

question 57

Multiple Choice

A child pulls a 3.00-kg sled across level ground at constant velocity with a light rope that makes an angle 34.0° above horizontal. The tension in the rope is 5.00 N. Assuming the acceleration of gravity is 9.81 m/s², what is the coefficient of friction between the sled and the ground?

• A)0.156
• B)0.188
• C)0.0441
• D)0.0851
• E)0.103

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Definitions:

Early Reflexes

Involuntary responses or movements that newborn babies exhibit, such as sucking, grasping, and stepping, which are essential for survival and development.

Voluntary Behavior

Actions that are performed as a result of conscious choice, control, or decision-making, contrasting with reflexive or automatic responses.

Innate Adaptive Responses

Natural or inborn reactions that have evolved to help an organism adjust or cope with changes in its environment.

Facial Expressions

Visibly communicated emotions or intentions through movements or positions of the muscles in the face.