A 20-Kg Block Is Projected Down a Plane That Makes an an Angle

question 15

Multiple Choice

A 2.0-kg block is projected down a plane that makes an angle of 20 $\degree$ with the horizontal with an initial kinetic energy of 2.0 J.If the coefficient of kinetic friction between the block and plane is 0.40,how far will the block slide down the plane before coming to rest?

• A)3.0 m
• B)1.8 m
• C)0.30 m
• D)1.0 m
• E)1.3 m

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Definitions:

Direct Labor Standards

The expected amount of time and wage rate for workers to complete a unit of production.

Labor Efficiency Variance

A measure of the difference between the actual hours worked and the standard hours expected to produce a certain level of output.

Standard Cost System

An accounting method that uses cost estimates for labor, materials, and overhead to assign costs to products, facilitating variance analysis between expected and actual costs.

Actual Results

The real financial or operational outputs of a business, as opposed to projections or estimates.