JAMB Mathematics 2006 Question 48

Question 48

Algebraic Expressions

If T = 2π√(l/g), make g the subject of the formula.

  1. A.4πl2/T
  2. B.4π2l/T2
  3. C.4π2l2/T2
  4. D.2π√l/T
Show the answer and explanation

Answer: B (4π2l/T2)

Explanation

Square both sides: T2 = 4π2l/g, so g = 4π2l/T2.