A 925 kg car rounds an unbanked curve at a speed of 25 m/s. If the radius of the curve is 72, what is the minimum coefficient of friction between the car and the road required so that the car does not skid?

Explanation:

The centripetal force is provided by the static friction between the car and the road, and always have to comply with , so we have:

Which means:

So we have:

Which means that is the minimum value the coefficient of static friction can have, which for our values is:

answer would be d.) i hope this

explanation:

a charge 3q is at the origin, and a charge −2q is on the positive x axis at x=a. part a where on the x-axis would you place a third charge so it would experience no net electric force? enter an expression for the exact answer, which will involve a square-root sign. (do not enter an approximate decimal answer.)