Quelpr
2 marksSubstitution in Algebraic Expressions

CSEC Mathematics · January 2010 · Paper 2 · Question 9(a)(ii)

The relationship between kinetic energy (E), mass (m), and velocity (v) for a moving particle is E = (1/2)mv^2.

Determine the value of v when E = 45 and m = 13.

The mark scheme is shown once you've answered.

Practise this question

Other parts of this question

  1. 9(a)(i)Express v in terms of E and m.[3 marks]
  2. 9(b)(i)Write g(x) in the form a(x + b)^2 + c, where a, b and c ∈ R.[3 marks]
  3. 9(b)(ii)Solve the equation g(x) = 0, writing your answer(s) correct to 2 decimal places.[4 marks]
  4. 9(b)(iii)a)Copy the sketch and state the y-coordinate of A.[3 marks]
  5. 9(b)(iii)b)Copy the sketch and state the x-coordinate of C.[3 marks]
  6. 9(b)(iii)c)Copy the sketch and state the x and y-coordinates of B.[3 marks]

More practice: the rest of this paper · more Substitution in Algebraic Expressions questions · all CSEC Mathematics past papers