Posted by **coefficient of fric?** on Wednesday, February 9, 2011 at 11:44pm.

The cake company truck is on it's way deliver a cake for a party when it rounds a curve of radius 20 m at a speed of 12 m/s. What coefficient of friction is needed between the cake pan and the truck in order to keep the pan from slipping?

please show work!

- Physics -
**drwls**, Thursday, February 10, 2011 at 2:23am
To avoid slipping, the maximum static friction force,

M g Us,

must exceed the centripetal force

M V^2/R

Set them equal and solve for the static friction coefficient, Us.

Us = V^2/(R*g)

That will be the minimum value required.

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