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Phys101 Lectures 7 Work and Kinetic Energy

i-clicker question 7-2: Friction and Work A) friction does no work at all B) friction does negative work C) friction does positive work A box is being pulled across a rough floor at a constant speed. What can you say about the work done by friction? W 0 when T! 90 q Force and displacement are in opposite directions.

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Transcription of Phys101 Lectures 7 Work and Kinetic Energy

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