# Quesion on Equilibrium of coplanar force

1. Oct 21, 2005

### sunnywho

I having diffculty trying to sovle this Question: Determine the reaction components at the supports of the beam due to the distribted shown

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2. Oct 21, 2005

### Fermat

You have a non-uniform udl from A to B.
Convert it to a udl of 2kips/ft from A to B with a non-uniform udl from A to the half-way point, ranging from 2 kips/ft down to 0, on top of it.
You should be able to work out the reaction/load and moment, about the point A, from the uniform udl.
Work out the reaction/load and moment, also about A, of the non-uniform udl.

Last edited: Oct 21, 2005
3. Oct 21, 2005

### Pyrrhus

Fermat you could use calculus, but it's not necessary, simply work out the areas, for the first, work it as a triangle and rectangle. Remember the area of distributed will give you the magnitude of the concentrated force from A to the middle and for the distributed force from the middle to C. Remember the forces will act on the centroid of the figures, then solve it like a concentrated force problem.

4. Oct 21, 2005

### Fermat

I didn't need calculus for the load of the non-uniform udl, but used it to work out the moment. It must be about 30 yrs since I did this stuff! Thanks for the update.