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phys111_sep25_lecture.pdf

phys111_sep25_lecture.pdf - Clicker Question 6.7 Read Ahead...

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Clicker Question 6.7 Read Ahead! An object is initially at rest. A net force (which always points in the same direction) is applied to the object so that the power of the net force is constant . As the object gains speed, A. the magnitude of the net force remains constant. B. the magnitude of the net force increases. C. the magnitude of the net force decreases. D. not enough information given to decide
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Clicker Question 6.7 Read Ahead! An object is initially at rest. A net force (which always points in the same direction) is applied to the object so that the power of the net force is constant . As the object gains speed, A. the magnitude of the net force remains constant. B. the magnitude of the net force increases. C. the magnitude of the net force decreases. D. not enough information given to decide
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Power: Energy Transfer defined The rate at which an energy transfer takes place SI units are Watts (W) Instantaneous Power The force and the velocity must be parallel, even if their magnitudes change with time
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