A tower crane has a hoist motor rated at 163 hp. If the crane is limited to
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A tower crane has a hoist motor rated at 163 hp. If the crane is limited to using 68.0% of its maximum hoisting power for safety reasons, what is the shortest time in which the crane can lift a 5.80 × 103 kg load over a distance of 83.0 m? Assume the load is lifted at a constant velocity.
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