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Q3. A projectile is fired vertically upwards from ground level with an initial velocity of 22 m/s. Two seconds later a second projectile is fired vertically upwards, from the same point, with an initial velocity of 15 m/s.

Calculate EACH of the following:

(a) the height above ground level at which they will meet. (12)

(b) the magnitude and direction of the velocity of the first projectile at the instant of meeting.