(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

An old oaken bucket of mass 6.75 kg hangs in a well at the end of a rope. The rope passes over a frictionless pulley at the top of the well, and you pull horizontally on the end of the rope to raise the bucket slowly a distance of 4.00m.

(a) How much work do you do on the bucket in pulling it up?

(b) How much work does gravity do on the bucket?

(c) What si the total work done on the bucket?

3. The attempt at a solution

I couldn't get part (a). I may not be understanding it right.

I said..

W = F d

W = (9.8*6.75) * 4.0m

W = 264.6 J

*assuming by slowly they mean the upward force is just slightly more than the weight

but the answer in the back of the book for a is 3.6J??

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Basic mechanical work problem

**Physics Forums | Science Articles, Homework Help, Discussion**