- #1

- 6

- 0

## Homework Statement

The car's wheel with mass 1kg and radius 0.3m has initial speed 40rad/s.

When braked, the force push to the center of the wheel is 10N.

The car stops after 2s.

Find coefficient.

## Homework Equations

## The Attempt at a Solution

This is what I did

Fc= Us.N= Us*m*g

so Us= Fc/mg

But why the problem gives so many information..about velocity..?