Question

Knowing the coefficient of kinetic friction between the two materials (0.03), he quickly calculates the normal force. What is it (in N)?

A physics major is cooking breakfast when he notices that the frictional force between the steel spatula and the Oiled Steel frying pan is only 0.450 N.

Answer 1

The equation for the force of friction is F`f` = `u`FN

Explanation:

`u` stands for coefficient of friction, which in this case is 0.03.

FN is the force normal

Using the equation,

`0.450 = 0.03Fn`

`Fn = 0.450/0.03`

The force normal is therefore `15N`