The diagram shows a uniform beam PQ. The length of the beam is 3.0 m and its weight is 50 N. The beam is supported on a pivot 1.0 m from end P. A load of weight W is hung from end P and the beam is in equilibrium.
What is the value of W ?

25 N
2 )
50 N
3 )
75 N
4 )
100 N
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