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The formula for work done against gravity is straightforward multiplication.

W= F x D (force times distance) and therefore W = m x g x d

The values are m (mass in kg), g (gravity in m/sec2), d (distance raised in meters).

The work is expressed in joules, or kg-m2 / sec2.

W (joules) = (20)(9.81)(.5) = 98.1 joules

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Related Questions

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