A Crate Rests on a Horizontal Surface and a Woman

question 20

Multiple Choice

A crate rests on a horizontal surface and a woman pulls on it with a 10-N force.No matter what the orientation of the force, the crate does not move.Rank the situations shown below according to the magnitude of the frictional force of the surface on the crate, least to greatest.

• A)1, 2, 3
• B)2, 1, 3
• C)2, 3, 1
• D)1, 3, 2
• E)3, 2, 1

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Definitions:

Marginal Product

The increase in output that arises from an additional unit of input, holding all other inputs constant.

Total Cost Curve

A graphic representation showing how total cost changes with changes in the level of output or production.

Output

The amount of goods or services produced by a company, industry, or economy in a given period.

Isoquant

A curve representing all the combinations of inputs that result in the production of a certain level of output, used in the study of production theory.