- #1

masterchiefo

- 212

- 2

## Homework Statement

metal piece = 300N

As this metal piece is in balance, what is the tension in each cable?

Picture of the problem in attachment.

## Homework Equations

## The Attempt at a Solution

W = 300*[0 0 1]D to A:

vtda = tda [sin(37), sin(37)*sin(90), -cos(37)]

D to B:

vtdb = tdb [sin(37)*sin(90), sin(37), - cos(37)]

D to C

vtdc = tdc [cos(30)*sin(37), -sin(30)*sin(37), -cos(37)]

solve([0 0 0]=300*[0 0 1])+vtda+vtdb+vtdb, {tda,tdb,tdc}

I have been trying to find the mistake for 3 hours but I really can't find it :/

When I solve with my TI calculator I get a "false"

thank you very much