Post a New Question

Physics

posted by on .

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 ?
(b) what is the power required ?

  • Physics - ,

    (a) Force * distance =
    6400 N * (2 m/s*180 s)= 2.304*10^6 J

    (b) Work/time = 2.304*10^6 J/180s
    = ___ Watts

  • Physics - ,

    Thanks !!! :)

Answer This Question

First Name:
School Subject:
Answer:

Related Questions

More Related Questions

Post a New Question