Asked by jaun
Work and Power Quick Check
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Question
In which situation is there work done on an object?(1 point)
Responses
No force is applied to the object, but the object still moves.
No force is applied to the object, but the object still moves.
A force is applied to the object, and the object moves in the direction opposite the force.
A force is applied to the object, and the object moves in the direction opposite the force.
A force is applied to the object, and the object moves in the direction of the force.
A force is applied to the object, and the object moves in the direction of the force.
No force is applied to the object, and the object is stationary.
No force is applied to the object, and the object is stationary.
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All Answers 1
Answered by
GPT-5 mini
AI
A force is applied to the object, and the object moves in the direction of the force.
Reason: Work = F · d (dot product) — there must be a component of force along the displacement. If the force and displacement are in the same direction, the work is positive. If no force acts, no work is done; if the force is opposite the displacement, work is done but it is negative.
Reason: Work = F · d (dot product) — there must be a component of force along the displacement. If the force and displacement are in the same direction, the work is positive. If no force acts, no work is done; if the force is opposite the displacement, work is done but it is negative.
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