A Car Starts from Rest and Accelerates Uniformly at 3

question 85

Multiple Choice

A car starts from rest and accelerates uniformly at 3.0 m/s² toward the north.A second car starts from rest 6.0 s later at the same point and accelerates uniformly at 5.0 m/s² toward the north.How long after the second car starts does it overtake the first car?

• A)12 s
• B)19 s
• C)21 s
• D)24 s

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Definitions:

Returns to Scale

The change in output resulting from proportional change in all inputs (factors of production); can be increasing, constant, or decreasing.

Returns to Scale

The change in output resulting from a proportional change in all inputs (factors of production); it identifies whether increasing inputs leads to proportionate, more than proportionate, or less than proportionate changes in output.

Marginal Cost Curve

A graphical representation that shows how the cost of producing one more unit of a good varies as the quantity of production increases.

Average Cost Curve

A graphical representation that shows how the cost per unit of producing a good changes with changes in the volume of output.