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Tension with trig

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11-13-2008, 01:33 PM

dh214

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Tension with trig

A uniform, 4.0-meter long beam weighing 1200 N is supported by a cable. The beam pivots at the bottom, and a 2100 N dead weight hangs from its top. Since the beam is not accelerating, you know that the net torque on it is zero. Find the tension in the cable, which is oriented at 25° from the horizontal i.e., perpendicular to the beam.

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