A Stone with a Mass of 1

question 45

Multiple Choice

A stone with a mass of 1.0 kg is tied to the end of a light string which keeps it moving in a circle with a constant speed of 4.0 m/s on a perfectly smooth horizontal tabletop.The radius of the path is 0.60 m.How much work does the tension in the string do on the stone as it makes one-half of a complete circle?

• A)100 J
• B)3.8 J
• C)0 J
• D)40 J
• E)80 J

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Definitions:

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