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lab04ws

lab04ws - PHYS 15200 Mechanics IUPUI Physics Department Lab...

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PHYS 15200 Mechanics IUPUI Physics Department Lab04: Friction Page 1 of 4 Lab 04: Friction Worksheet Name Date Partners PART I – STARTING FRICTION Mass of block = kg

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PHYS 15200 Mechanics IUPUI Physics Department Lab04: Friction Page 2 of 4 PART II – PEAK STATIC AND KINETIC FRICTION Peak static friction Average Total mass (m) Normal force (N) Trial 1 Trial 2 Trial 3 peak static friction (N) Kinetic friction Average Total mass (m) Normal force (N) Trial 1 Trial 2 Trial 3 kinetic friction (N) PART III – KINETIC FRICTION AGAIN Data: Block with no additional mass Trial Acceleration (m/s 2 ) Kinetic friction force (N) μ k 1 2 3 4 5 Average coefficient of kinetic friction:
PHYS 15200 Mechanics IUPUI Physics Department Lab04: Friction Page 3 of 4 Data: Block with 500 g additional mass Trial Acceleration (m/s 2 ) Kinetic friction force (N) μ k 1 2 3 4 5 Average coefficient of kinetic friction: PART IV - ANALYSIS 1. In pushing a heavy box across the floor, is the force you need to apply to start the box moving greater than, less than, or the same as the force needed to keep the box moving?

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