physics

posted by .

An electric motor lifts an elevator 1.1 m in 13.0 s by exerting an upward force of 7.80 x 104 N. What power does the motor produce in kW?

  • physics -

    Power = Force x velocity
    = 6600 Watts = 6.6 kW

    (The velocity is 1.1/13 m/s)

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. physics

    an electric motor lifts on elevator 9 m in 15s by exerting an upward force of 1.2 x 10^4 calculate the power
  2. physics

    An electric motor develops 73 kW of power as it lifts a loaded elevator 20.0 m in 35 s. How much force does the motor exert?
  3. physics

    A 690 kg elevator starts from rest. It moves upward for 2.56 s with constant acceleration until it reaches its cruising speed, 1.84 m/s. What is the average power of the elevator motor during this period?
  4. physics

    A 690 kg elevator starts from rest. It moves upward for 2.56 s with constant acceleration until it reaches its cruising speed, 1.84 m/s. What is the average power of the elevator motor during this period?
  5. physics please help

    A 690 kg elevator starts from rest. It moves upward for 2.56 s with constant acceleration until it reaches its cruising speed, 1.84 m/s. What is the average power of the elevator motor during this period?
  6. Physics

    An electric motor develops 70 kw of power as it lifts a loaded elevator 28.5 m in 42 seconds. How much force does the motor exert?
  7. physics

    A certain elevator car has mass 2200 kg and is lifted by cables driven by an electric motor. The efficiency of the lift system (motor, pulleys, cable, etc.) is 67.0%. As the elevator car moves at constant speed of 3.0 m/s it encounters …
  8. Physics

    Searches related to a motor lifts an elevator of mass m at constant speed. The power output of the motor is P and there are no frictional losses so that all the power output from the motor goes into lifting the elevator mass. What …
  9. Physics

    A motor lifts an elevator of mass m at constant speed. The power output of the motor is P and there are no frictional losses so that all the power output from the motor goes into lifting the elevator mass. What is the correct expression …
  10. Physics

    An elevator weighing 400kg is to be lifted up at a constant velocity of 0.6m/s for this purpose a motor of required horse power is used. (g=9.8m/s).(a)What is the acceleration of motor in case of upward motion?

More Similar Questions