The time required for an elevator to lift a weight varies directly with the weight and the distance through which is to be lifted and inversely as the power of the motors. If it takes 20 seconds for a 5hp motor to lift 50 lbs through 40 ft, what size of motor is required to lift 1200 Ibs in 30 seconds through 40 ft 15 minutes 12 minutes 10 minutes 8 minutes
The time required for an elevator to lift a weight varies directly with the weight and the distance through which is to be lifted and inversely as the power of the motors. If it takes 20 seconds for a 5hp motor to lift 50 lbs through 40 ft, what size of motor is required to lift 1200 Ibs in 30 seconds through 40 ft 15 minutes 12 minutes 10 minutes 8 minutes
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:The time required for an elevator to lift a weight varies directly with the weight and the
distance through which is to be lifted and inversely as the power of the motors. If it takes 20
seconds for a 5hp motor to lift 50 lbs through 40 ft, what size of motor is required to lift 1200
Ibs in 30 seconds through 40 ft
15 minutes
12 minutes
10 minutes
8 minutes
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