The area under a curved force and displacement graph shows:
Correct answer: B. Work under a variable force
- A. Work under a constant force
- B. Work under a variable force
- C. Work under a maximum force
- D. Work under a minimum force
Explanation
The curved nature of the graph shows that the force is changing and is not a straight, horizontal, constant line; hence, it represents work under a variable/changing force.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Work and Energy
Work transfers energy when a force causes displacement, while kinetic energy, gravitational potential energy and power describe motion, position and the rate of energy transfer. The work-energy theorem links net work with change in kinetic energy, and efficiency accounts for energy losses rather than treating them as energy destruction.
Practise Work and Energy
748 free Work and Energy MCQs from Physics, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Physics questions like this
Physics is on 16 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Work and Energy questions
When the applied force and covered displacement are parallel to each other than work done of the body is:
An engine pulls a car of mass 1500 kg on a level road at a constant speed of 5 ms-1. If the frictional force is 500 N, what power does the engine generate?
The power needed to lift a mass of 5000g to height of 1 m in 2 second is?
If the velocity is doubled then the K.E of the body will be:
What is the power of an electric motor when it consumes energy of 9 x 10^3 J in 3 s?
What is the value of potential energy of a body at the height where the value of 'g' is zero?