The work done by a constant force of 5 Newton acting on a body is 5 joules. The displacement of the body in the direction of the applied force is ______.

Correct option is C

Correct Answer: (C) 1 m

Explanation:

The work done (W) by a force is given by the formula:

W=F⋅d⋅cosθ

Where:

• F is the applied force,
• d is the displacement,
• θ is the angle between the force and displacement.

Here:

• W=5 Joules,
• F=5 Newtons,
• The force acts in the same direction as the displacement (θ=0∘), so cosθ=1.

Using the formula:

5=5⋅d⋅1

​$$d = \frac{5}{5} = 1 \, \text{meter}$$​​

Key Points:

• Work done is the product of force and displacement when the force is applied in the same direction.
• If the force is perpendicular to displacement (θ=90^∘), no work is done.