Physics, 17.02.2020 23:30 josephfoxworth
A certain crane can provide a maximum lifting force of 25 000 N. It hoists a 2000-kg load starting at ground level by applying the maximum force for a 2-second interval; then, it applies just sufficient force to keep the load moving upward at constant speed. Approximately how long does it take to raise the load from ground level to a height of 30 m?
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A certain crane can provide a maximum lifting force of 25 000 N. It hoists a 2000-kg load starting a...
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