# Homework Help: Static Equilibrium Problem

1. Feb 21, 2005

### krypt0nite

How do I do this problem? How do I start?
Problem
I drew all the Forces acting on the body and used Net Torque=0. I still can't find the right answer. So far none of my answers are close. I think my approach is wrong. Can someone give me any hints to help me solve it.

2. Feb 21, 2005

### Gokul43201

Staff Emeritus
What you've done is essentially correct, but unless you show your calculations, there's no way we can tell you where you made the mistake.

3. Feb 21, 2005

### krypt0nite

Net Torque CCW = Net Torque CW
Mg(3m) = 470.4N(6m) I used the wheel as the fulcrum point.
Mg= 940.8N

4. Feb 21, 2005

### Gokul43201

Staff Emeritus
You do not know that the center of mass of the boat is at 3m.

You must assume the position of the CoM as some distance x (from the wheel) in the first case, and x - 0.15 in the second case. Write both equations, with the two unknowns (x and M), and solve for them from the equations.

5. Feb 22, 2005

### krypt0nite

and the answer is A=440kg right?
thx

6. Feb 22, 2005

### F|234K

H.C, how u get the question from the test#?$#?@$?#@