Wednesday

July 30, 2014

July 30, 2014

Posted by **J** on Saturday, February 12, 2011 at 12:38pm.

section — an arc of a circle of radius R =

1440 m. The curved section is banked at

angle a = 19.1 degrees from the horizontal to help

the cars to stay in the road while moving at

high speeds.

The acceleration of gravity is 9.8 m/s^2 .

One day, oil spills on the track making a

few meters of the curved section frictionless.

Calculate the speed v of a car which can cross

the oil spill of the curve without slipping sideways.

Correct answer: 69.9051 m/s.

I'm supposed to figure out how they got this answer in order to apply this concept to a similar problem but I'm unsure as of how to do it.

**Related Questions**

Physics - A high-speed test track for cars has a curved section — an arc of a ...

physics - A body slides down a curved track which is one quadrant of a circle of...

Calculus - The curved section can be modelled by the parabola y=3x-3/4x^2 Use ...

Dynamics - A motorcycle is traveling at 20 m/s when it enters the test section ...

math - Whats the difference between an arc [of a circle]'s length and measure? ...

Physics - A car traveling at constant speed safely negotiates a frictionless ...

Physics - A car traveling at constant speed safely negotiates a frictionless ...

physics - A 0.40-kg block slides along a small track with elevated ends and a ...

college physics - A 0.50-kg block slides along a small track with elevated ends ...

physics - A 4.74 kg spherical ball with radius 1.4 cm rolls on a track with a ...