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Hey I cannot figure out the frictional force from this problem.I have been working on it for an hour or two now. All help is appreciated thanks.
A car drives around a curve with radius 400 m at a speed of 32.5 m/s. The road is banked at 4.83°. The mass of the car is 1420 kg. What is the frictional force on the car?
At what speed could you drive around this curve so that the force of friction is zero?
If your feeling especially nice this one is giving me trouble to once again with the static friction
A coin is placed on a turntable that is rotating at 33.3 rpm. If the coefficient of static friction between the coin and the turntable is 0.140, how far from the center of the turntable can the coin be placed without having it slip off?
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