WAEC Further Mathematics 2020 Question 30

Question 30

Vectors

A force of 230N acts in its direction 065°. Find the its horizontal component.

  1. A.208.5N
  2. B.197.2N
  3. C.118.5N
  4. D.97.2 N
Show the answer and explanation

Answer: A (208.5N)

Explanation

065° is a bearing, measured from north. The horizontal (east) component is 230 sin 65° ≈ 208.5 N.