LAB 105

# LAB 105 - LAB 105 COEFFICIENT OF STATIC FRICTION Livia...

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LAB 105: COEFFICIENT OF STATIC FRICTION Livia Kuruvila Amy Patel Kunal Rana Vikram Ramkumar Phys 111A-001 October 20, 2010 Chiranjivi Lamsal

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Introduction: The objective of this lab was to measure the coefficient of static frictioni between the two surfaces. Once we have measured this value we wanted to assess whether this value is independent of the normal force N (the normal force is calculated by the equation N=mg ). Static friction F s can be any value between zero and the maximum value F smax . In order to calculate the normal force you would use the equation W=mg. In order to calculate the coefficient of static friction you would use the equation W b = μ s W a , W a is the weight of the wooden block on the plane and W b is the grams used. Both of these numbers need to be converted from grams to weight (W). In order to calculate the coefficient of static friction when the block is moving up on the plane the equation used it W b =W a sin θ + μ s W a cos θ . When the block is moving down the plan the equation used is
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LAB 105 - LAB 105 COEFFICIENT OF STATIC FRICTION Livia...

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