Question

Chapter 05, Problem 22

A 780-kg race car can drive around an unbanked turn at a maximum
speed of 43 m/s without slipping. The turn has a radius of 180 m.
Air flowing over the car's wing exerts a downward-pointing force
(called the *downforce*) of 11000 N on the car.
**(a)** What is the coefficient of static friction
between the track and the car's tires? **(b)** What
would be the maximum speed if no downforce acted on the
car?

Answer #1

A 890-kg race car can drive around an unbanked turn at a maximum
speed of 43 m/s without slipping. The turn has a radius of 150 m.
Air flowing over the car's wing exerts a downward-pointing force
(called the downforce) of 12000 N on the car. (a) What is the
coefficient of static friction between the track and the car's
tires? (b) What would be the maximum speed if no downforce acted on
the car?

A 770-kg race car can drive around an unbanked turn at a maximum
speed of 42 m/s without slipping. The turn has a radius of 160 m.
Air flowing over the car's wing exerts a downward-pointing force
(called the downforce) of 12000 N on the car.
(a) What is the coefficient of static friction
between the track and the car's tires? (b) What
would be the maximum speed if no downforce acted on the
car?

An 800-kg race car can drive around an unbanked turn with
coefficient of static friction between the track and the car's
tires of 0.02. The turn has a radius of curvature of 150 m. Air
flowing over the car's wing exerts a downward-pointing force of 10
000 N on the car. Calculate the maximum speed without slipping.

a- What is the maximum speed with which a 1200-kg car can round
a turn of radius 90.0 m on a flat road if the coefficient of static
friction between tires and road is 0.60?
Part b
If the jet is moving at a speed of 1140 km/h at the lowest point
of the loop, determine the minimum radius of the circle so that the
centripetal acceleration at the lowest point does not exceed 6.0
g's.
Express your answer to...

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