Q. 55.0( 1 Vote )

5 examples of neg

Answer :

Let, work done = W

We know,


= Force

= displacement

Let, θ = angle between &


Work done is negative if,


So whenever force acts opposite to displacement work done is negative.

Examples of Negative work done are

(i) When a body is thrown upwards, gravity does the negative work. Since the gravitational force acts downwards but the displacement is upwards.

(ii) When we walk frictional force does the negative work since frictional force acts opposite to displacement.

(iii) For a liquid flowing, viscous force does the negative work since it acts opposite to the direction of the force.

(iv) On a see-saw, negative work is done since we apply the force downwards but the person is sitting opposite to us is displaced upwards.

(v) In the case when we pull out water from a well negative work is done since we pull the rope downwards but the bucket is displaced upwards.

Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
view all courses

Figure <span langPhysics - Exemplar

Figure <span langPhysics - Exemplar

Two uniform solidHC Verma - Concepts of Physics Part 1

A block of known HC Verma - Concepts of Physics Part 1