- #1

- 9

- 0

## Homework Statement

- A worker lifts a 20.0-kg bucket of concrete from the ground up to the top of a 20.0-m-tall building. The bucket is initially at rest, but is traveling at 4.0 m/s when it reaches the top of the building. What is the minimum amount of work that the worker did in lifting the bucket?

## Homework Equations

F= ma

W= Fd

F=KE at the tope of the building

## The Attempt at a Solution

Since bucket has KE at the top of the building, would I be finding the KE using KE=(1/2)mv^2 equation and then plugging that final number into my W=Fd equation where d would be 20.0 m?

Help please!