# Physics

posted by .

Alright so I need some help
were doing Friction and Centripetal Force

A 1250 Kg car traveling at 12 m/s is exiting circular highway exit ramp with a radius of 36 meters

then I'm asked to find the acceleration
the centripetal force
the normal foce
which I have done then I'm asked to

calculate the minimum value of the coefficient of friction necessary for the car to stay on the road...

I have no idea how to do this...
I now that Ff= uFn I think or something like that so I don't know how to do this problem because well I know the Fn but not the Ff or do I???

please show me all the formulas you use and step by step thanks

• Physics -

Here is what I suggest. Go immediately to BarnesNoble, or your local college bookstore, and take a look at Schaumn's Outline Series, College Physics (there are several versions, I like the physics for engineers).

It has many solved problems that will guide you through the process. It is relatively inexpensive.

## Similar Questions

1. ### physical science

A car with a mass of 1,200 kilograms is moving around a circular curve at a uniform velocity of 20 meters per second. The centripetal force on the car is 6,000 newtons. What is the radius of the curve?
2. ### physics help go!

Two cars are traveling at the same speed of 27 m/s on a curve that has a radius of 126 m. Car A has a mass of 1020 kg, and car B has a mass of 1670 kg. Find (a) the magnitude of the centripetal acceleration and (b) the magnitude of …
3. ### physics

Cloverleaf exits are approximately circular. A 1256 kg automobile is traveling 58 mph while taking a cloverleaf exit that has a radius of 35.4 m. Calculate the centripetal acceleration of the car and the centripetal force on the car. …
4. ### physics

A car is traveling at a constant speed of 27.1 m/s on a highway. At the instant this car passes an entrance ramp, a second car enters the highway from the ramp. The second car starts from rest and has a constant acceleration. What …
5. ### Physics

How much work is done by the centripetal force (in this case, the friction between the tires and the road) on a 1200 kg car moving on a circular track of radius 50 meters at a constant speed of 31.4 m/s?
6. ### phyics

A car is traveling at a constant speed of 31.8 m/s on a highway. At the instant this car passes an entrance ramp, a second car enters the highway from the ramp. The second car starts from rest and has a constant acceleration. What …
7. ### physics

A car is traveling around a circular banked road without friction which is inclined at 72 degrees which has a vertical height of 25 meters. When the car is traveling at 16 m/s around the road, it is moving at the bottom on the incline …