Syd5678 Syd5678

01-03-2018
Physics

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Please HELP! Many points! How much work does a weightlifter do if he lifts a 400 Newton barbell 3 meters high- 15 times???

Respuesta :

01-03-2018

Work = (force) x (distance)

1 time: (400 newtons) x (3 meters) = 1,200 joules

15 times: (1,200 joules) x (15) = 18,000 joules

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