How Fast Will the Elevator Rise with 14kW of Power?

[blarginsnarf]

I'm only in high school physics so this may seem easy to you all XD

Homework Statement

The motor for an elevator can produce 14kW of power. The elevator has a mass of 1100kg, including its contents. At what constant speed will the elevator rise?

Homework Equations

P = E / T?
Ek = mv^2 / 2

The Attempt at a Solution

14000 = E / T
Ek = 1100v^2 / 2

 

[cepheid]

I'm only in high school physics so this may seem easy to you all XD

Homework Statement

The motor for an elevator can produce 14kW of power. The elevator has a mass of 1100kg, including its contents. At what constant speed will the elevator rise?

Homework Equations

P = E / T?
Ek = mv^2 / 2

The Attempt at a Solution

14000 = E / T
Ek = 1100v^2 / 2

If you use the fact that the power is the rate at which work is done by the motor (P = W/t), and that W = Fd, you can derive a whole new equation for power that consists of only quantities that are mentioned in the problem.