Why there is no friction between the road and the cars tires

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Reference no: EM1346027

Q. A car of mass M = 1500 kg traveling at 45.0 km/hour enters a banked turn covered with ice. The road is banked at an angle theta, and there is no friction between the road and the car's tires.

What is the radius r of the turn if theta = 20.0^circ (assuming the car continues in uniform circular motion around the turn)?

Q. Imagine that the coefficient of kinetic friction between a certain 15-kg box and the floor is 0.35. How hard would you have to push on it to move it at a constant speed of 2.6 m/s across the floor?

Reference no: EM1346027

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