A 1390-N uniform beam is attached to a vertical wall at one endand is supported

Question

A 1390-N uniform beam is attached to a vertical wall at one endand is supported by a cable at the other end. A 1960-N crate hangsfrom the far end of the beam. Using the data shown in the figure,find (a) the magnitude of the tension in the wireand the magnitudes of the (b) horizontal and(c) vertical components of the force that the wallexerts on the left end of the beam.

Please help me step bystep. I do not even understand where to start. Will greatlyappreciate any attempts to solve!!!


Question Details:

A 1390-N uniform beam is attached to a vertical wall at one endand is supported by a cable at the other end. A 1960-N crate hangsfrom the far end of the beam. Using the data shown in the figure,find (a) the magnitude of the tension in the wireand the magnitudes of the (b) horizontal and(c) vertical components of the force that the wallexerts on the left end of the beam.

Explanation / Answer

Let T be the tension then Horizontal component be H and vertical be V then, Taking the moment of force abt edge we have as, If l is the length of the beam then, 1960*lcos30+1390*(lcos30/2)=Tsin50*lcos30 From this we get tension T in it. Taking the algebric sum of vertical components we haveas, Tsin50+V=1960+1390 Taking the algebric sum of vertical components we haveas, Tsin50+V=1960+1390 From this we get the vertical force V in it. Taking the horizontal forces we have as, H=T cos50 Hence we get by it.

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