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Q3. A projectile is fired vertically upwards with an initial velocity of 305 m/s. The effect of air resistance is a constant force equal to one-seventh of the gravitational force experienced by the projectile.

Calculate EACH of the following:

(a) the time taken to reach the maximum height; (6)

(b) the maximum height attained by the projectile; (4)

(c) the time the projectile takes to fall from maximum height to its starting position. (6)