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A curve of radius 69 mm is banked for a design speed of 76 km/hkm/h . Part...

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Physics

A curve of radius 69 mm is banked for a design speed of 76km/hkm/h .

Part A

If the coefficient of static friction is 0.28 (wet pavement), atwhat range of speeds can a car safely make the curve?[Hint: Consider the direction of the friction force whenthe car goes too slow or too fast.]

Express your answers using two significant figures. Enter youranswers numerically separated by a comma.

Answer & Explanation Solved by verified expert
4.5 Ratings (703 Votes)
v 76 kmh 21111 mssothe banking angle is found as arctan v2 gr arctan 211112 98 69 33388 degreeNowthere are two casesCase 1    See Answer
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