A construction worker uses a pulley and a rope to
1 answer:
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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