Physics
posted by Emily Grossman .
If a curve with a radius of 88m is perfectly banked for a car traveling 75km/h, what must be the coefficient of static friction for a car not skid when traveling at 95 km/h?

change velocities to m/s
Then, sketch the bank and force vectors parallel to the bank.
1) mg*sinTheta=mv^2/r * cosTheta
where v=75km/hr in m/s
solve for tan theta (sin/cos).
verify that. Now, you increase speed, same angle.
mg*sinTheta+mu*mg*cosTheta=mv^2/r * cosTheta
so find mu. How is the easy way? divid e by cos theta , you know tan theta.
v= new speed (95 in m/s), solve for mu. 
Can you show me step by step with the numbers in there? I am confused..

0.327
Respond to this Question
Similar Questions

Physics
If a curve with a radius of 85 is perfectly banked for a car traveling 71 , what must be the coefficient of static friction for a car not to skid when traveling at 86 ? 
Physics
How to solve/ work this problem? If a curve with a radius of 88m is perfectly banked for a car traveling 75 km/h, what must be the coefficient of static friction for a car not to skid when traveling at 95km/h? 
Physics
If a curve with a radius of 88m is perfectly banked for a car traveling 75km/h, what must be the coefficient of static friction for a car not to skid when traveling at 95km/h? 
Physics help.
If a curve with a radius of 94.5 m is perfectly banked for a car traveling 72.4 km/h, what must be the coefficient of static friction for a car not to skid when traveling at 96.4 km/h? 
Physics
As a civil engineering intern during one of your summers in college, you are asked to design a curved section of roadway that meets the following conditions: When ice is on the road, and the coefficient of static friction between the … 
physic
If a curve with a radius of 80m is properly banked for a car traveling 63km/h , what must be the coefficient of static friction for a car not to skid when traveling at 97km/h ? 
Physics
I need to check my answers for the following: An Aston Martin V8 Vantage sports car has a maximum “lateral acceleration” of 0.96 “g’s”, after which the car begins to skid out of its turn. 2.1 Calculate the coefficient of … 
Physics
If a curve with a radius of 91.5 m is perfectly banked for a car traveling 77.4 km/h, what must be the coefficient of static friction for a car not to skid when traveling at 91.6 km/h? 
physics
A highway curve with radius 1000ft is to be banked so that a car traveling 56.0mph will not skid sideways even in the absence of friction At what angle should the curve be banked? 
PHYSICS?
1300 kg car rounds a banked curve of radius= 50m. If car traveling at 75 km/h and the coefficient of static friction between the tire and road is 0.45 ... 1.) what is the minimum angle of the bank needed to keep the car in the turn?