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.

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.