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Car A uses tires for which the coefficient of static friction is 1.1 on a particular unbanked curve. The maximum speed at which the car can negotiate this curve is 30 m/s. Car B uses tires for which the coefficient of static friction is 0.7 on the same curve. What is the maximum speed at which car B can negotiate the curve?

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    Use the equation v=sqrt(rmug) and solve for r. Then plug r into the same equation and solve for v for car b.

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