A 650-kilogram elevator starts from rest. It moves upwards for 3 seconds with constant acceleration until it reaches its cruising speed of 1.75 m/s. During this three-second interval, the elevator motor must provide power to move the elevator. Calculate the average power provided by the motor during this time interval? Show your work. Hint: Two forces act on the elevator. One is weight pointing downwards, and the other is the force of motor pointing upwards. Calculate work done by the motor.
A 650-kilogram elevator starts from rest. It moves upwards for 3 seconds with constant acceleration until it reaches its cruising speed of 1.75 m/s. During this three-second interval, the elevator motor must provide power to move the elevator. Calculate the average power provided by the motor during this time interval? Show your work. Hint: Two forces act on the elevator. One is weight pointing downwards, and the other is the force of motor pointing upwards. Calculate work done by the motor.
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Transcribed Image Text:A 650-kilogram elevator starts from rest. It moves upwards for 3 seconds with constant acceleration until it reaches its cruising speed of 1.75 m/s. During this three-second interval, the elevator motor must provide power to move the elevator. Calculate the average power provided by the motor during this time interval? Show your work. *Hint*: Two forces act on the elevator. One is weight pointing downwards, and the other is the force of motor pointing upwards. Calculate work done by the motor.
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