A 150-Kg Crate Is Placed on an Adjustable Inclined Plane

question 72

Multiple Choice

A 150-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 0.20 m/s² when the incline angle is 18°,what is the coefficient of kinetic friction between ramp and crate? (g = 9.8 m/s²)

• A)0.40
• B)0.50
• C)0.30
• D)0.20
• E)2.8

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Definitions:

Elasticity of Demand

An indicator quantifying the impact of price movements on demand for a good.

Elasticity Coefficient

A measure of how much the quantity demanded or supplied of a good responds to a change in price, income, or another economic factor.

Resource Demand

The desire and ability of producers to acquire resources at various prices, which are necessary for production of goods and services.

Labor Cost

The total expense incurred by employers for wages, salaries, and benefits paid to their employees.