## Friction calculator :

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

## Friction Formula :

Friction formula is magnitude of friction F_{f(N)} in Newton is equal to the coefficient of friction is μ _{(N)} in Newton and multiply the magnitude of the normal force F_{n(N)} in Newton. Hence the Friction Formula can be written as

**F _{f(N)}=μ _{(N)}*F_{n(N)}**

Where,

magnitude of friction→ F_{f}

coefficient of friction→ μ

magnitude of the normal force → F_{n}

##### The Normal force is equivalent to the weight of the given body. Therefore, the Normal force( F_{n)} is articulated by

**F _{n}=mg**

Where,

F→ force in Newton

M→ mass in gram (g), kilogram (kg) and tone (t)

G→ gravity in ms^{-1}

## Sample Sums :

### Sum1 :

A child is pulling a box of mass 20kg.What is the standard force acting and also calculate the frictional force if the coefficient of friction μ is 2.5?

### Solution :

Mass=m=20kg

Normal foce , F_{n}=?

Normal force is given by F_{n}=mg

=20kg *9.8m/s^{2}

=196N

The frictional force is articulated by F_{f}=μF_{n}

=2.5*196N

=487.5N

### sum2 :

Calculate the frictional force acting between her and the frost layer? In a Nancy of mass 80kg is slipping on the frost. If the coefficient of friction acting is 0.45.

### Solution :

Given mass m= 80kg

Coefficient of friction μ=4.5

The Normal force is articulated by F_{n}=mg

=80kg *9.8m/s^{2}

=784N

The Frictional force is articulated by F_{f}=μF_{n}

=0.45*784N

=352.8N