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Jayne lifts the barbell 120 cm upwards. She has a mass of 60kg. How much work does she do?
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5 votes
Jayne lifts the barbell 120 cm upwards. She has a mass of 60kg. How much work does she do?

User Mariopce
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1 Answer

5 votes
Work = Force x displacement
Force = mass x gravitational acceleration
Force = 60 x 9.81 = 588.6N
Work = 588.6 x 0.12m =70.632 J
User Arash Rohani
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