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pokeefer

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## Homework Statement

Im doing Physics 12 with equilibrium

The diagram shows a beam 3.2 m long with masses hanging from it. The mass of the beam is negligible in comparison with the other masses.

Diagram:

http://i51.tinypic.com/jjb449.jpg

a.) If the beam is in equilibrium, what is the force of tension in the cable?

b.) If the beam is in equilibrium with the 150kg mass 3.2 m from the 90 kg mass, how far is the 90kg mass from the cable?

c.) If the force of tension in the cable is 2352 N and the cable is attached 2.2 m from the right end of the beam, what is the net torque on the beam about the right end?

d.) If the force of tension in the cable is 2352 N and the cable is attached 2.2 m from the right end of the beam, what is the torque about the point where the cable is attached to the beam?

## Homework Equations

Net Torque = 0

Net Fx = 0

Net Fy = 0

Torque = Force x length

Torque = mass x gravity x length

## The Attempt at a Solution

There were many similar examples but not in this design. So im unsure if im doing it right.

If you could at least answer question part a

I would greatly appreciate it

Thanks