Question

A force of 20 N displays a body through a distance of 1 m at an angle of 60° from its own direction. Calculate the amount of work done.

Answer 1

Given

Force (F) = 20 N

Displacement (s) = 1 m

Angle between force and displacement θ = 60°

★ Work (W) = Fs cos θ

= 20 × 1 × cos 60°

= 20 × 1 × ½

= 10 J

Answer 2

Hey

Given :-

Force = 20 N

Displacement = 1m

Angle = 60°

As we know that

work done(W) = Fs cos60°

The value of cos60° is 1/2

= 20 × 1/2 × 1

= 10Joules