waecE-LEARNING
Further Mathematics Paper 2, May/June. 2010  
Questions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 Main
General Comments
Weakness/Remedies
Strength








Question 18

(a) The position vectors of the points X and Yare x = (-2 j + 5 j) and y = (i -7 j)
respectively.
(i) (3 x + 2y);
  (ii) I (y - 2x) I;
(iii) the angle between x and y;
(iv) the unit vector in the direction of (x + y).

(b) A bullet of mass 0.084 kg is fired horizontally into a 20 kg block of wood at rest on a smooth floor. If they both move at a velocity of 0.24 ms" after impact, calculate, correct to two decimal places, the initial velocity of the bullet.

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Observation

The chief examiner reported that more candidates attempted this question than questions 16 and 17 and their performance was better in this question than in questions 16 and 17.

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