# Work Formula

Work is said to be done when a body undergoes displacement. It is denoted by W.

Work Formula is given by

Where F = force applied and

d = displacement.

Work formula is used to calculate work done, force or displacement in any problems. It is given in Nm.

## Work Problems

Here area few problems that will help you to understand the concept better.

## Solved Examples

**Question 1:** Calculate the work done if 15 N of force acts on the body showing the displacement of 3m?

**Solution:**

Given: Force F = 15 N,

Displacement d = 3m,

Work done W = F $\times$ d

= 15 N $\times$ 3m

= 45 Nm.

**Question 2:** Calculate work done for 5 N of force and 4 metre displacement and angle between force and displacement is 45 degree?

**Solution: **

Given: Force F = 5N,

Displacement d = 4m,

$\theta$ = 45^{o}

Work done W = Fd cos $\theta$

= 5N $\times$ 4m cos 45^{o}

= 14.12 Nm.

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