What Is the Safest Speed for a Banked Curve with Ice?

AI Thread Summary
To determine the safest speed for a vehicle navigating a banked curve with a radius of 120 m and a banking angle of 3.5° on icy conditions, the absence of friction must be considered. The relevant physics equation involves centripetal force, where the weight of the car acts at an angle to the normal force due to the banking. Without friction, calculations rely on the balance of forces acting on the vehicle. The discussion highlights the need to reference external resources, such as HyperPhysics, for a deeper understanding of the dynamics involved. Ultimately, the focus is on calculating the speed under these specific conditions.
Jtappan
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Homework Statement



A curve in a highway has radius of curvature 120 m and is banked at 3.5°. On a day when the road is icy, what is the safest speed to go around the curve?
_________ m/s



Homework Equations



m(v^2/r)?


The Attempt at a Solution



How are you suppose to find this if you don't know the static friction coefficient?
 
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