Question

Calculate the displacement of a body if 1200 J of work is done by a force of 600 N?

Answer 1

Answer:

W=0

Explanation:

Work done is given by W = Fs cosθ 1. when F and s are parallel, θ = 0 and hence cosθ = 1 ∴ W = Fs = 600 × 2 = 1200 J. 2. when F and s are at right angles, θ = 90° and hence cosθ = 0 ∴ Work done, W = 0

Answer 2

Given :-

Work done by the body = 1200 J

Force applied by the body = 600 N

To Find :-

The displacement covered by the body.

Analysis :-

Here we are given with the work done and force applied by the body.

In order to find the displacement substitute the values given in the question such that work done is equal to force multiplied displacement.

Solution :-

We know that,

• s = Displacement
• f = Force
• w = Work done

Using the formula,

$\underline{\boxed{\sf Work \ done=Force \times Displacement}}$

Given that,

Work done (w) = 1200 J

Force (f) = 600 N

Substituting their values,

⇒ w = fs

⇒ 1200 = 600 × s

⇒ s = w/f

⇒ s = 1200/600

⇒ s = 2 m

Therefore, the displacement of the body is 2 m.