Centripital Force - Physics 125 Discussion #8 1 Problem 1:...

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Unformatted text preview: Physics 125 Discussion #8 1 Problem 1: Rounding a Flat Curve A BMW Z4 roadster is rounding a flat, unbanked curve with radius R . The coefficient of friction between the tires and road is s . (1) Define your coordinate system and draw the free-body diagram for the car. (Hint: the +x-direction is toward the center of the cars circular path.) (2) If the cars speed is v , what is the acceleration toward the center of the circular path, a rad ? (3) What is the cars vertical acceleration? (4) What is the force that keeps the car moving in its circular path? Does the cars speed increase or decrease with this force? Physics 125 Discussion #8 2 (5) Write out Newtons second law for the x- and y- directions. (6) What is the maximum force that keeps the car moving in its circular path at the maximum speed v max ? Express your answer in terms of m , g, and s , where m is the cars mass....
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Centripital Force - Physics 125 Discussion #8 1 Problem 1:...

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