- #1

Taylor_1989

- 402

- 14

## Homework Statement

I am having problem calculating this question. I even looked at the answer sheet and worked back, which gave me some luck, but still do not fully grasp the question.(i) Calculate the weight W of the workman.

## Homework Equations

moment clockwise = moment anticlockwise

## The Attempt at a Solution

My attempt pre look at question: I did 0.20-0.03= 0.17, 0.20+0.03= 0.23 so far so good.

I the did 0.20+0.50=0.70 so middle Q which then gave me 0.67 and 0.73. I then took the W*0.17=160*0.73.

But when I looked at the answer I got the first part right but the second part wrong. Do I have to include R and S into the equation? I would appreciate the help if possible.

Also here is what the answer says: W × 0.17/0.20/0.23 = 160 × 0.72/0.75/0.78

W × 0.17 = 160 × 0.78 or 600 N

730/734 N

I really can't see where the 0.72 ect come from unless you included distance from R S but the weight is in the middle.