## Coefficient of Static Friction Calculator :

Enter the calculator its Normal force (N) in newtons(N), Friction (F) in newtons(N), and you get the calculation below the calculator check it.

## Coefficient of Static Friction Formula :

Coefficient of static friction μs is equal to the product of the Static force of friction F_{(N) }in Newton is divided by Normal force N_{(N)} in Newton. Hence the coefficient of static friction has been written as,

**μs = F _{(N)} / N_{(N)}**

Where,

F →Static force of friction in (N)

μs → coefficient of static friction

N → Normal force in (N)

## Sample Examples :

### Example 1:

Calculate the coefficient of static friction? In a object having a mass of 20 kg is placed on a smooth surface. Static friction between these two surfaces is given as the 30 N.

### Solution :

Given,

Mass of box, m = 20 kg

Friction between them, F = 30 N

Coefficient of static friction μ_{s} = ?

We know that,

Normal force, N = mg

So, N = 20 * 9.81

= 196.2 N (g = 9.81)

For coefficient of static friction is,

μ_{s }= F/N

μ_{s} = 30/196.2

μ_{s }= 0.153.

### Example 2:

Calculate the coefficient of static friction? The normal force and the static frictional force of an object are 60 N and 70 N respectively.

### Solution :

Given,

N = 60 N

F = 70 N and

μ_{s} = ?

the formula for coefficient of static friction is

μ_{s }= F /N

μ_{s} = 70/60

μ_{s }= 1.16.