circle of radius 35.0m If the coefficient of static friction between crate and truck is 0.600, how fast is it?

Question

A crate of eggs is located in the middle of the flatbed of a pickup truck as the truck negotiates an unbanked curve in the road. The curve may be regarded as an arc of a circle of radius 35.0 m. If the coefficient of static friction between crate and truck is 0.600, how fast can the truck be moving without the crate sliding?.

Answer 1

You want a speed V that gives a radial acceleration A of 0.6 g, or 5.886 m/sec^2. This can be found from the equation A=V^2/R, where R is the radius.
5.886=V^2/35
V=SQRT(5.886*35)=14.353 m/sec.

Answer 2

http://en.wikipedia.org/wiki/Friction