An elevator has a mass of 1160 kg and carries a maximum load of 612 kg. A constant frictional force of 3330 N retards its motion upward. What power must the motor deliver at a instantaneous speed of 3.38 m/s if the elevator is designed to provide an upward acceleration of 1.4 m/s²? The acceleration due to gravity is 9.8 m/s². Answer in units of W.
An elevator has a mass of 1160 kg and carries a maximum load of 612 kg. A constant frictional force of 3330 N retards its motion upward. What power must the motor deliver at a instantaneous speed of 3.38 m/s if the elevator is designed to provide an upward acceleration of 1.4 m/s²? The acceleration due to gravity is 9.8 m/s². Answer in units of W.
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Transcribed Image Text:An elevator has a mass of 1160 kg and
carries a maximum load of 612 kg. A constant
frictional force of 3330 N retards its motion
upward.
What power must the motor deliver at a
instantaneous speed of 3.38 m/s if the elevator
is designed to provide an upward acceleration
of 1.4 m/s²? The acceleration due to gravity
is 9.8 m/s².
Answer in units of W.
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