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## Homework Statement

A 1820N uniform boom is suppoted by a cable. The boom is pivoted at the bottom, and a 1100N object hangs from its end.

The boom has a length L=13 m and is at an angle of 48 degree above the horizontal. At support cable is attached to the boom at a distance of .77L from the foot of the boom and its tension is perpendicular to the boom.

Find the tension in the cable holding up the boom.

## Homework Equations

## The Attempt at a Solution

1100N * L * cos(48)

+ 1820N* 0.5L * cos(48)

- T * 0.77L

=0

Since L is not relevant in this equation you can just cancel it out.

I got answer to be

1746.691583N

which of course is wrong.

Could you please them me what I am doing wrong.