A 5.0 kg sign hangs from a boom supported by a cable connected to the wall. The

Question

A 5.0 kg sign hangs from a boom supported by a cable connected to the wall. The cable makes a 30 degree angle with the boom. Sketch a force diagram for the sign.

a. what is the force of tension in the cable?

b. What force does the boom apply to the sign?

A 5.0 kg sign hangs from a boom supported by a cable connected to the wall. The cable makes a 30 degree angle with the boom. Sketch a force diagram for the sign. a. what is the force of tension in the cable? b. What force does the boom apply to the sign?

Explanation / Answer

equating torques about the rightmost point on the boom, 5*9.8*l = T*sin30*l so, T = 98 N

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