Physics

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A car with a mass of 900 kg moves along a road at a 89 km/hour at equal speed. On the road is a curve with a radius of 250.

a) What is the force in the curve between the tires and the road if the road is horizontal?

b) What inclination is the best for that car on the road?

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Is that formula:( F=mv^2/r ) right for for a) ?

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