Question

A curve of radius 68 m is banked for a designed speed of 85km/h. If the coefficient of static friction is 0.30, at what range of speeds can a car safely make the curve? (You must show schematic and free-body diagrams, and apply Newton's 2nd law of motion.)

Answer #1

A curve of radius 90 m is banked for a design speed of 80 km/h.
If the coefficient of static friction is 0.30 (wet pavement), at
what range of speeds can a car safely make the curve?
Minimum- ? km/h
Maximum - ? km/h

A curve of radius 70 mm is banked for a design speed of 85 km/h
.
If the coefficient of static friction is 0.40 (wet pavement), at
what range of speeds can a car safely make the curve?
[Hint: Consider the direction of the friction force when
the car goes too slow or too fast.]
Express your answers using two significant figures separated by
a comma.
vmin, vmax = ????? km/h

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a car can travel around this curve without skidding. Neglect the
effects of air drag and rolling friction. If the coefficient of
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If a curve with a radius of 81 m is properly banked for a car
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If a curve with a radius of 82 m is properly banked for a car
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A curve of radius 20 m is banked so that a 1100 kg car traveling
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Find the minimum speed at which a car can travel around this
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A car rounds a 50 meter radius curve that is banked such that a
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The coefficient of kinetic friction between the tires and the
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If a car takes a banked curve at less than the ideal speed,
friction is needed to keep it from sliding toward the inside of the
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(a) Calculate the ideal speed to take a 125-m radius curve
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Did you draw a free body diagram and label all forces acting on a
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(b) What is the minimum coefficient of friction needed for a
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What coefficient of friction is needed to keep the car on the
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Express your answer using two significant figures.

A car merges onto the freeway on a banked curve. The car
maintains a constant velocity 푣 while driving on the curve, which
is banked at angle theta and has a radius of curvature R. The car
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The car tends to slip up...

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