A stone is thrown up from the surface of earth when it reaches at maximum height. Its total energy is equal to
Correct answer: A. mgh
- A. mgh
- B. Zero
- C. 1/2 mv²
- D. 2 mgh
Explanation
At maximum height vertical speed is zero so KE = 0; total energy equals potential energy mgh.
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
If momentum of a moving object is doubled then its kinetic energy will be
Potential energy per unit volume is given by
The kinetic energy acquired by a body of mass m is travelling some distance s, starting from rest under the actions of a constant force, is directly proportional to
If 10 kg mass is dropped from a certain height, hits the ground with speed 10 ms⁻¹. The height will be
In freely falling system, if potential energy is equal to kinetic energy. Then force of friction of air will
A 500N force is applied on an object and it moves with velocity 10 ms⁻¹. If value of power is 2500 watt. Then what will be the angle between force and displacement?