A Stone Weighing 5 Pounds Is Attached to the End

question 114

Multiple Choice

A stone weighing 5 pounds is attached to the end of a five-foot string and is whirled horizontally with one end held fixed. It makes 1 revolution per second. Find the work done by the force F that keeps the stone moving in a circular path.
[Hint: Use Force = (mass) (centripetal acceleration) .] Round your answer to two decimal places, if required.

• A) 1,570.80
• B) 0.00
• C) 7,853.98
• D) 2,500.00
• E) 78.54

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Ease of Entry

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Marginal Revenue

The supplementary income derived from the sale of one extra product or service unit.

Perfect Competition

A market setup where numerous small companies, offering indistinguishable products and having the freedom to enter or exit the market, results in firms accepting the market price without influencing it.

Equal to Price

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