Force Density Pressure Question 10
10. O/N 15/P22/04
(a) Define moment of a force.
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(b) An arrangement for lifting heavy loads is shown in Fig. 4.1.
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Fig. 4.1
A uniform metal beam AB is pivoted on a vertical wall at A. The beam is supported by a wire joining end B to the wall at C. The beam makes an angle of 30° with the wall and the wire makes an angle of 60° with the wall.
The beam has length 2.8m and weight of 500N. A load of 4000N is supported from B. The tension in the wire is T. The beam is in equilibrium.