(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Two 10-inch diameter pipes (pipe 1 and pipe2) are supported every 10ft by a small frame like the one shown. Knowing that the combined weight per unit length of each pipe and its contents is 22 lb/ft and assuming frictionless surfaces, determine the components of the reactions at A and E.

2. Relevant equations

3. The attempt at a solution

first id like to make sure im doing the weight of the pipe correctly:

Wboth = (22 lb/ft)(10ft) = 220lb. W1 = W2 = 110lbs

now that its all typed out i think i know what to do, but just correct me if im wrong. i can get the verticle forces of A and E by finding the moment of the entire frame and setting it to 0. (the only forces involved are the weight of both pipes. A and E counter act it to make a moment of 0)

Then i can find all forces acting on Pipe 2, which is pipe 1, the pole and gravity pulling it down.

Then i find the forces acting on Pipe 1 which is pipe 2, both poles, and gravity.

Then i find the moment about the brown dot for each pole individually to find the horrizontal forces of A and E

edit: and also i beleive the horizontal distance from the brown dot to where pipe 2 makes contact with the pole is 1.5rsin(theta)

the horizontal distance of pipe 1 is just rsin(theta).

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# Homework Help: Help with frames physics

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