Three forces - in equilibrium or not?

shin777 · May 16, 2013

Three forces -- in equilibrium or not?

Hi. I am new to physics and need some help on this question asap. Did I get it right or is it wrong? Correct me if I am wrong. Thank you.

Handwritten physics working on lined paper: a three-force diagram with 33 N at 30 degrees and 20 N at 22 degrees, a downward force labelled x, and a red-circled question asking for x and whether the object is in equilibrium; component sums and the equation 33sin30 + 20sin22 - x = 0 with x = 24N are shown below.

davidchen9568 · May 16, 2013

Looks good.

CWatters · May 16, 2013

You are correct. It's not in equilibrium left to right but your working should really include the equation that proves it. eg...

33Cos(30) - 20Cos(22) <> 0

Three forces - in equilibrium or not?

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