Work is done when the person lifts the book because force is applied to move the book over a distance against gravity.
Related Questions:
- A car is moving with a constant speed along a straight road. Is there any work done on the car?
- Does the work done in raising a box up in a building depend upon how fast it is raised up? Through which path? To how much height?
- Work done on a body either speeds it up or slows it down. Keeping this in mind, explain how much work is done by centripetal force on an orbiting satellite?
- A car has kinetic energy ‘Eₖ’. By what factor would its kinetic energy change if its velocity is doubled?
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- How does using renewable energy sources contribute to reducing environmental impact compared to non-renewable sources?
- Will we eventually rely entirely on renewable energy sources? Why or why not?
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- How does the work-energy theorem explain the relationship between work and kinetic energy?
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- How does gravitational potential energy change when an object is taken from Earth to the Moon?
- A machine is said to be efficient. What does it mean in terms of input and output energy?
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