Does the Centripetal Force Acting on an Object Do Work

question 59

Multiple Choice

Does the centripetal force acting on an object do work on the object?

• A)Yes, since a force acts and the object moves, and work is force times distance.
• B)Yes, since it takes energy to turn an object.
• C)No, because the object has constant speed.
• D)No, because the object's displacement is zero.
• E)No, because the force and the displacement of the object are perpendicular.

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