1MA0 Higher June 2017 Paper 2 Q22
22 \(a = \dfrac{v - u}{t}\)
\(v = 37.6\) correct to 3 significant figures.
\(u = 11.3\) correct to 3 significant figures.
\(t = 8.4\) correct to 2 significant figures.
Work out the upper bound for the value of \(a\).
Show your working clearly. (3)
| Answer | Mark | Notes |
|---|---|---|
| \(\dfrac{528}{167}\) | 3 | B1 for 37.55 or 37.65 or 11.25 or 11.35 or 8.35 or 8.45 M1 for \(\dfrac{37.65 - 11.25}{8.35}\) for \(\dfrac{v_{ub} - u_{lb}}{t_{lb}}\) where \(37.6 \lt v_{ub} \leqslant 37.65\) and \(11.25 \leqslant u_{lb} \lt 11.3\) and \(8.35 \leqslant t_{lb} \lt 8.4\) A1 for answer in range 3.16 to 3.162 from correct working |