In general though you should not skip this step so

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Unformatted text preview: ar object (such as a ball or cylinder) is: f r = µr n where f r is the magnitude of the rolling friction force exerted by the surface on the object, µ r is the coefficient of rolling friction between the surface and the object, and n is the normal force exerted by the surface on the object. They have also discovered that µ r is generally much less than either the static or kinetic friction coefficients. Practical 1 Physics 193 Page 2 of 2 III. Determine the coefficient of rolling friction The goal is to design and perform an experiment to determine the coefficient of rolling friction between the ball and the wooden ramp. You will need to know the value of this coefficient to be able to decide if the assumption you made about friction was legitimate or not. Use the following experimental setup: Lay the wooden ramp flat (do not tilt it) and roll the ball in a straight line along the ramp. Available equipment: Ball, wooden ramp, motion sensor, Logger Pro software, comput...
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