# Equilibrium Torque help needed

1. Nov 19, 2005

### Ineedofhelp

Im having trouble with torque and equilibrium (independant study unit) and i was wondering if anything woudl be willing to help me with a few text book problems that i just cant solve:
1.
image of problem : http://www.imagedump.com/index.cgi?pick=get&tp=347420
a uniform 1000kg steel girder is supported by the endpoints A and B
What are the upward forces of these end points
Basicaly what i think needs to be done is set up a point of rotation lets say at support B. then the 2 forces of G pushing down have to equal to the force of A pushing up correct?
i just dont rly understand torque that well
For the force of A would it be ?
F x 32m = (9.8 x 1000kg) x 16m ) + (9.8 x 2500kg) x 24m)
16m bieng the distance to the center of the steel girder (Fg) and 24m bieng the distance to the middle of the container (fg)
thanks for the help :)

Last edited by a moderator: Nov 19, 2005
2. Nov 19, 2005

### Fermat

Yes, everything that you've done is correct.