A Mass of 47 Kg Is Moving Horizontally as a Force

question 55

Multiple Choice

A mass of 47 kg is moving horizontally as a force of 190 N, directed at 25° below the horizontal, is exerted on it.When its speed is 7.3 m/s, what is the rate at which the force is doing work?

• A)0 W
• B)340 W
• C)590 W
• D)1300 W
• E)1400 W

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Definitions:

Average Total Costs

The total costs of production (fixed plus variable) divided by the total quantity of output produced, expressing the cost on a per-unit basis.

Economies of Scale

The savings that organizations achieve through their size of operation, where the expense per produced unit consistently decreases with an upscaling in operation.

Diseconomies of Scale

The phenomenon where production costs per unit increase as a firm's size or output increases beyond a certain point.

U-shaped

A description often used to illustrate how certain economic variables, such as average cost, behave, initially decreasing with increased activity and then increasing.