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A particle, of weight W newtons, is held in equilibrium by two forces of
magnitudes 20 newtons and 30 newtons. The 20 newton force is horizontal
and the 30 newton force acts at an angle 0 above the horizontal, as shown
in the diagram. All three forces act in the same vertical plane
30 N
20 N
W
(i)
Find 0, to the nearest minute.
(ii) Find W, to 1 decimal place.

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