ConceptWork and Energy - Potential Energy of an Object at a Height

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#### Question

A mass of 10 kg is at a point A on a table. It is moved to a point B. If the line joining A and B is horizontal, what is the work done on the object by the gravitational force? Explain your answer.

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#### Similar questions

The potential energy of a freely falling object decreases progressively. Does this violate the law of conservation of energy? Why?