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work is defined as mass x acceleration x distance

assuming you are lifting vertically against gravity only, you can assume:

mass = 8kg

accel = 9.81 metres / second / second

distance = 1 m

8*9.81*1 = 78.48

SI unit being joules. if you were to perform this amount of work in 1 second you would consume 78.48 watts, i.e. an equivalent amount of energy that 1 light bulb would burn in 1 second of illumination.

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Related Questions

Work is required to lift a barbell How many time more work is required to lift the barbell three times as high?

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How many times more work is required to lift the barbell three times as high?

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