Recent content by wrw103

I don't know exactly what your application is, but if you're looking for an easy to use microcontroller that's relatively inexpensive, I'd suggest the Parallax Propeller. It's a hobby microcontroller, but it can easily handle switching two outputs at a given time interval, and I think it's only...

Thermo II Engineering Analysis Fluid Mechanics Mechanics of Materials Tech Writing Microeconomics

Hi AlephZero, I think I understand. The cable is acting tangential to the pulley so I cannot use the top of the pulley as a point on the line of action for the tension. I reworked the problem and got the correct answer. Thanks for the help!

Hi Mech_Engineer, I'm using the equation sum of moments = 0, and I'm taking moments about point D. Therefore the tension in member AD and DE have no effect because their lines of action pass through D. So that leaves the tension in AB, the cable pulling downwards, and the cable pulling up at...

Hi everyone, I was given a statics problem to determine some forces in a truss. The attached image has the specific problem on it. The correct answer was supplied so I know what I should be getting, and I was able to get the correct answer using the method of joints starting from Pulley C...