Question

A curve that has a radius of 90 m90 m is banked at an angle of ?=11.0∘. If a 1050 kg car navigates the curve at 70 km/hwithout skidding, what is the minimum coefficient of static friction μs between the pavement and the tires?

?s=

Step 1

Angle of Banking, θ=11.0^{0}

Mass of the car, m=1050 kg

Radius of the curve, r=90m

Car speed, v=70 km/hr

Converting the car speed into m/sec,

Step 2

In case of Banking, from equilibrium conditions,

Step 3

f= fricitional force

μs=satic fri...

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