Physics

posted by .

What power is needed to lift a 358 crate of bricks from the ground to the top of a 25.0 -high building in 1 minute?

  • Physics -

    Fc = mg = 358kg + 9.8N/kg = 3508 N. =
    Force of crate.

    P = F * d/t = 3508 * 25m/60s = 1462 J/s.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. physics 3!! **

    A man lifts a 3 kg crate from the floor to a shelf (2 m high) at constant speed*. What was the change in KE of the crate?
  2. physics

    A crane lifts a concrete hopper of mass 370 kg from the ground to the top of a 38 m building that is under construction. The hopper moves with a constant speed during the lift. The power rating of the crane motor is 8.2 kiloWatts. …
  3. physics

    A crane lifts a concrete hopper of mass 370 kg from the ground to the top of a 38 m building that is under construction. The hopper moves with a constant speed during the lift. The power rating of the crane motor is 8.2 kiloWatts. …
  4. Physics

    A lift is pulled up to the top of a building by a constant force of 6400N at a constant speed of 2m/s. It takes 3mins to reach the top. (a) how much work is done in raising the lift to the top of the building ?
  5. physics

    A chair lift takes skiers to the top of a mountain that is 320 m high. The average mass of skiers complete with equipment is 85 kg . The chair lift can deliver three skiers to the top of the mountain every 36 s Determine the power …
  6. Physics

    An electric motor is rated to have a maximum power output of 0.72 hp. If this motor is being used to lift a crate of mass 188 kg, how fast (i.e., at what speed) can it lift the crate?
  7. physics

    A labour is throwing 12 bricks per min from the ground and these just reach the roof which is 3.3 meters high. ifthe weight of each bricks be 3.75 kg then find the horse power with which the labour is working.
  8. Physics

    A laborer is throwing 12 bricks per min from the ground and these just reach the roof which is 3.3 meters high. if the weight of each bricks be 3.75 kg then find the horse power with which the laborer is working.
  9. Math

    Building Bricks A child is playing with building bricks like this one. He decides to build the simple tower shown. How many bricks would he need to build this tower?
  10. physics

    a 15kg rock falls from the top of a building 8.0m high. Find its PE and KE a.when at rest at the top of the building b. halfway down the ground c. when it reaches the ground d.speed when it reaches the ground

More Similar Questions