A wrecking ball (weight = 5400 N) is supported by a boom, which may be assumed to be uniform and has a weight of 3000 N.

A wrecking ball (weight = 5400 N) is supported by a boom, which may be assumed to be uniform and has a weight of 3000 N. As the drawing shows, a support cable runs from the top of the boom to the tractor. The angle between the support cable and the horizontal is 32°, and the angle between the boom and the horizontal is 48°.