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Q2. a) The wind force, ω Newtons, on a vertical surface varies directly with the area of the surface, A m², and the square of the wind velocity, v knots. When the wind velocity is 20 knots, the force on a ship’s vertical bridge window, of area 2 m² is 130 N.

Calculate the force on a similar window of area 1.8 m² when the wind velocity is 60 knots. (6)

(b) Factorize fully EACH of the following:

(i) 12x⁵ - 17 x⁴ + 6 x³ (4)

(ii) 200 - 50 x - 32 x2 + 8 x3 (6)