as you are riding in a 1650-kg car, you approach a hairpin curve inthe road whos
ID: 1283871 • Letter: A
Question
as you are riding in a 1650-kg car, you approach a hairpin curve inthe road whose radius is 50m. the roadbed is banked inward at anangle of 10 degrees.
a) suppose the road is very icy, so that the coefficient of staticfriction is essentially zero. what is the maximum speed at whichyou can go around the curve?
b) now suppose that the road is dry and that the static frictioncoefficient between the tires and the asphalt road is .6 whatis the maximum speed at which you can safely go around thecurve.
show force diagrams
Explanation / Answer
a. apply tna theta = V^2/rg
V^2 = 50 * 9.8 * tan 10
V = 9.29 m/s
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V^2 = 50*9.8 * 0.6
V = 17.14 m/s
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