How does the work needed to lift an object and the gravitational potential energy of the object compare?

When an object is lifted at a steady speed, the work done against gravity becomes an equal increase in its gravitational potential energy. For example, lifting an object with weight 10 N by 2 m requires 20 J of work and gives it 20 J of additional gravitational potential energy. So the work and the increase in gravitational potential energy are equal.

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