Post a New Question

physics-mechanics

posted by .

A high-speed test track for cars has a curved
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.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. math

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

    The curved section can be modelled by the parabola y=3x-3/4x^2 Use calculus to find the maximum height of the curved parabolic section. How do I do this step by step?
  3. Dynamics

    A motorcycle is traveling at 20 m/s when it enters the test section of a circular track with a 1000-m radius. Once in the test section, the cycle slows down and its deceleration along the track varies with its position, s, by the relation …
  4. physics

    A body slides down a curved track which is one quadrant of a circle of radius R. If it starts from rest at the top of the track and there is no friction, find the speed at the bottom of the track is R equals 5 m.
  5. Physics

    A car traveling at constant speed safely negotiates a frictionless banked curved. Calculate the speed of the car when the road is banked at 20 degrees and the radius of its path is 50 meters. (HINT - Do not rotate your axes) Answer …
  6. Physics

    A car traveling at constant speed safely negotiates a frictionless banked curved. Calculate the speed of the car when the road is banked at 20 degrees and the radius of its path is 50 meters. HINT – Do not rotate your axes. Answer …
  7. Physics

    A high-speed test track for cars has a curved section — an arc of a circle of radius R = 3000 m. The curved section is banked at angle θ = 7 . 94 ◦ from the horizontal to help the cars to stay in the road while moving …
  8. Physics

    A roller coaster goes 40-m along a section of track sloping 10 degrees below the horizontal, followed by a 13-m section sloping upward at 6 degrees, followed by an 26-m section of level track. Find the net displacement in m.
  9. Physics

    A roadway for stunt drivers is designed for race cars moving at a speed of 95 m/s. A curved section of the roadway is a circular arc of 760 m radius. The roadway is banked so that a vehicle can go around the curve with the friction …
  10. mechanics of machines

    A vehicle travelling at 29m/s on a level road surface which curved to a radius of 50m about to overturn The centre of gravity at centre of the 1.5m track. a. At what height is the centre of gravity b. At what velocity could the vehicle …

More Similar Questions

Post a New Question