A 42.0-kg uniform square sign, 2.00m on a side, is hung from a 3.00m rod of negligible mass. A cable is attached to the end of the rod and to a point on the wall 4.00m above the point where the rod is fixed to the wall.
(a) What is the tension in the cable?
(b) What is the horizontal component of the force exerted by the wall on the rod?
(c) What is the vertical component of the force exerted by the wall on the rod?
(OWL, WISE. "Login." On-line Web Based Larning. 01 01 2008. U Mass Amherst. 2 Apr 2009
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