A 300-Kg Crate Is Placed on an Adjustable Inclined Plane $\degree$

question 17

Multiple Choice

A 300-kg crate is placed on an adjustable inclined plane.As one end of the incline is raised,the crate begins to move downward.If the crate slides down the plane with an acceleration of 0.70 m/s² when the incline angle is 25 $\degree$ ,what is the coefficient of kinetic friction between ramp and crate? (g = 9.8 m/s²)

• A)0.47
• B)0.42
• C)0.39
• D)0.12

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Definitions:

Learned Helplessness

A state where an individual experiences feelings of being powerless, resulting from experiencing trauma or continuous lack of success.

Unavoidable Shocks

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Seligman

A psychologist known for his research in the areas of learned helplessness, positive psychology, and the theory of well-being.

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