Question

The given figure depicts the graph of work done vs. displacement under a constant force of 10 N. Which of the following statements is true?

Options

• Force is acting at an angle of 0° with the displacement.

• Force is acting at an angle of 45° with the displacement.

• Force is acting at an angle of 60° with the displacement.

• Force is acting at an angle of 90° with the displacement.

Answer 1

Force is acting at an angle of 60° with the displacement.

Explanation:

The slope of a work–displacement graph gives the component of force in the direction of displacement:

Slope = F cos θ

The graph’s slope is 5 N.

10 cos θ = 5 and θ = 60°