answersLogoWhite

0


Best Answer

work=mass x gravity x height that's the answer for part a

for part b about the power its just work/time therefore (mgh)/time is the answer for b

User Avatar

Wiki User

12y ago
This answer is:
User Avatar
More answers
User Avatar

Anonymous

Lvl 1
3y ago

A lot

This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: How much work does an elevator motor do to lift a 1000 kg elevator a height of 100 m and how much power must the motor supply to do this in 50 s at constant speed?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Continue Learning about Physics

Why does a shaded pole motor run at constant speed?

The frequency of the applied voltage is constant.


Why the second hand of a clock cannot travel at constant velocities?

It depends on the motor used to run the clock.An electric motor can drive the second hand at constant velocities. A mechanical motor has a little pendulum in it. It swings back and forth once per second, and every time it swings it moves the second hand.


Name two ways that friction is harmful?

The two ways that friction is harmful is that it causes wear and tear of the parts and there is also causes abrasion on surfaces. However, frictions is also useful in various ways like braking when riding a bike and so on.In elevator systems, it is harmful to motor and machine bearings, causes wear. on elevator rails that elevator rides on ,the guide shoes wear and need constant lubrication, unless they use more modern roller guides.


What does hydrostatic drive Mean?

a pump is driven by the engine of the machine and is linked to the speed set by the operator. It pumps a constant stream of high-pressure oil to the motor. Since the motor is linked to the drive wheels or tracks of the machine, it gives the machine its travel speed.


When do you use constant speed?

Speed of...? It depends on the context. Natural constant speeds include those of light (and all electromagnetic radiation) in vacuo; also that of electricity along a conductor. The average speeds of sound in air and water are taken as constants in acoustics. You may also need specific constant speeds of say, an electric motor or generator.

Related questions

Is the load of elevator motor depend on building height?

no,elevetor motor depends on size of elevetor & how many persons are accomodate in elevetor.


What type of ac motor will operate at a constant speed from no load to full load?

The Synchronous motors will operate at a constant speed from noload to fullload. Even it is classified as an AC motor, we have to fed the motor both AC and DC supplies. That we have to supply DC to the Field (Normally Rotor) and AC to the Armature (Normally Stator).


Which DC motor is constant speed motor?

Dc shunt motor is constant speed motor.Its speed is constant with armature current.This shunt motor is used in paper mills and drilling machines


How does the 3-phase induction motor acts like 2-phase induction motor if a phase is disconnected from supply?

yes the motor will run but will draw more current and the torque will be not constant means not smooth due to unbalanced current


What is constant speed DC motor?

Dc shunt motor is constant speed motor.Its speed is constant with armature current.This shunt motor is used in paper mills and drilling machines


What is the phase voltage inside a motor if one phase is lost and what is the voltage between the other two phases?

The phase voltage is usually constant and determined by the supply voltage.


How do you do solo test for motor?

just connect the supply of motor to power supply..and run..then ovserve the motor sounds,temperature and vibration.


How does the elevator work?

Passenger elevators are big pulleys powered by a motor with 6-8 cables or more that pull the elevator cab or the counter weight letting the elevator go up or down.


What is in an elevator pit?

An elevator pit typically contains the elevator buffer, which absorbs energy in case of a sudden stop or free fall, the counterweights, and the guide rails that ensure the elevator cab moves smoothly. Additionally, it may also house the hydraulic equipment or motor that powers the elevator.


Can you run a 460v 60hz motor to a 480v supply?

The the supply stays within +/- 5% of what the motor is rated for, you can do this.


Will a 3 phase motor work on grounded B phase?

If the motor is connected to an ungrounded delta supply service there will be no effect on the operation of the motor. If the motor is connected to a wye system supply service and the B phase grounds out, the motor's overload protection would take the motor off line from the electrical supply.


What is heating time constant for an induction motor?

The heating time constant is the time that an induction motor takes to reach it's operational temperature.