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boyakko [2]
3 years ago
13

A construction worker uses a pulley and a rope to

Chemistry
1 answer:
Umnica [9.8K]3 years ago
3 0

Answer: Work is 1.7 kJ,  Power is 280 W

Explanation: Work  W = mgh, power P= W/t

W = 85 kg·9.81m/s²·2 m = 1667.7 J

P = 1667.7 J / 6 s = 277.95 W

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