Question

A boy pushes a chair through a distance of 10 m by applying a force of 40 N. How much work is done by the boy?​

Answer 1

Answer:

400

Explanation:

w = FS (force × displacement)

Answer 2

Given :-

Distance the chair is pushed = 10 m

Force applied by the boy = 40 N

To Find :-

The work done by the body.

Analysis :-

Here we are given with the distance covered by the force applied by the boy.

In order to find the work done substitute the given values from the question such that work done is equal to force multiplied by the distance.

Solution :-

We know that,

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

Using the formula,

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

Given that,

Force (f) = 40 N

Displacement (s) = 10 m

Substituting their values,

⇒ w = fs

⇒ w = 40 × 10

⇒ w = 400 J

Therefore, the work done by the boy is 400 J.