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.
Last updated
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.
Exams that ask Physics questions like this
Physics is on 13 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.