| Exam Board | OCR MEI |
|---|---|
| Module | M1 (Mechanics 1) |
| Year | 2006 |
| Session | January |
| Marks | 7 |
| Paper | Download PDF ↗ |
| Mark scheme | Download PDF ↗ |
| Topic | Constant acceleration (SUVAT) |
| Type | SUVAT simultaneous equations: find u and a |
| Difficulty | Moderate -0.3 This is a straightforward SUVAT problem requiring students to form two simultaneous equations from given information and solve them, then apply a standard kinematic formula. While it involves algebraic manipulation with two unknowns, the setup is direct with no conceptual tricks, making it slightly easier than average for A-level mechanics. |
| Spec | 3.02d Constant acceleration: SUVAT formulae |
6 A car is driven with constant acceleration, $a \mathrm {~m} \mathrm {~s} ^ { - 2 }$, along a straight road. Its speed when it passes a road sign is $u \mathrm {~m} \mathrm {~s} ^ { - 1 }$. The car travels 14 m in the 2 seconds after passing the sign; 5 seconds after passing the sign it has a speed of $19 \mathrm {~m} \mathrm {~s} ^ { - 1 }$.\\
(i) Write down two equations connecting $a$ and $u$. Hence find the values of $a$ and $u$.\\
(ii) What distance does the car travel in the 5 seconds after passing the road sign?
Section B (36 marks)\\
\hfill \mbox{\textit{OCR MEI M1 2006 Q6 [7]}}