Look at the FBD shown on the left. You should see only two forces acting in
the X-direction. A component of N acts in the negative X direction while a component
of Ff acts in the positive direction. This leads to the equation:
Look at the FBD shown on the left. You should see only two forces acting in
the X-direction. A component of N acts in the negative X direction while a component
of Ff acts in the positive direction. This leads to the equation:
But, Finward plays an important role here - it must be the force producing the centripetal acceleration of the car so:
which implies that
