- #1
Pinkchika88
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Homework Statement
a restaurant sing hangs from a metal bar attached to a wall and supported by a wire. the bar has a mass of 5 kg, and a length of 1.2 m. the sign has a mass of 23 kg and hangs from 2 chains located at .3 m from each end of the bar. the wire makes a 28 degree angle with the bar
Homework Equations
find the tension of the wire
find the normal force the bar exerts against the building
The Attempt at a Solution
i drew the free body diagram and found that the Fweight of the bar and the Fweight of both chains should equal Ftension*cos28. is this right?