i had a homework packet due over my holiday break and i need some help with a few of the questions. thanks ahead of time
A highway curve that ha a radius of curvature of 100 m is banked at an angle of 15 degrees. (Hint: the car is turning on an inclined plane, make a force diagram of it and work from there!)
a) determine the vehicle speed for which this curve is appropriate if there is no friction between the road and the tires of the vehicle.
On a dry day when friction is present, an automobile successfully negotiates the curve at a speed of 25 m/s.
B) draw and lable all the forces on the automobile.
c) determine the minimum value of the coeficcient of friction necessary to keep this automobile from sliding as it goes around the curve.
2007-01-07 11:21:10 · 4 answers · asked by milk man 1 in Science & Mathematics ➔ Physics
i did my homework there are just some i don't know how to do. this is one of them
2007-01-07 11:31:34 · update #1
Your diagram shows the road surface at a 15 degree angle.
The 2 forces are: gravity (straight down) and centripetal force (horizontal, pointing uphill).
On a frictionless track, these forces must be perfectly balanced.
The magnitude of the lateral force must be just enough to combine with gravity, and create a total vector that's 15 degrees off vertical.
Wish I could add more, but it's over 25 years sisnce I needed this stuff.
2007-01-07 11:38:16 · answer #1 · answered by Alan 6 · 0⤊ 0⤋
no ones gonna do all that for 2 points... not even 12 for the 2 and best answer, my guess is to do it yourself, but i can tell you if there is no friction then there is no appropriate speed you shouldnt drive on it
2007-01-07 19:25:39 · answer #2 · answered by Leo j 2 · 0⤊ 0⤋
What are isotopes? What are the different between isotopes elements and isotopes atoms?
2007-01-07 20:10:47 · answer #3 · answered by Kao Sheng Vang 1 · 0⤊ 0⤋
Why didn't you do your homework??
2007-01-07 19:28:51 · answer #4 · answered by mmturtle 5 · 0⤊ 0⤋