The Force an Ideal Spring Exerts on an Object Is

question 79

Multiple Choice

The force an ideal spring exerts on an object is given by F_x =-kx,where x measures the displacement of the object from its equilibrium (x = 0) position.If k = 60 N/m,how much work is done by this force as the object moves from x = -0.20 m to x = 0?

• A)-1.2 J
• B)+1.2 J
• C)+2.4 J
• D)-2.4 J
• E)+3.6 J

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Definitions:

Actual Level Of Activity

The real measure of how much work is performed or output is produced in a given period, often compared to planned or standard levels of activity.

Standard Activity

A benchmark or base level of activity used for planning, measuring, and controlling performance.

Quantity Standard

A preset benchmark that specifies the expected amount or number of units to be used or produced under normal conditions.

Variable Manufacturing Overhead

The portion of manufacturing overhead costs that varies with the level of production output, such as utility costs or indirect materials.