| Exam Board | OCR |
|---|---|
| Module | M1 (Mechanics 1) |
| Year | 2010 |
| Session | January |
| Marks | 6 |
| Paper | Download PDF ↗ |
| Mark scheme | Download PDF ↗ |
| Topic | SUVAT in 2D & Gravity |
| Type | Vertical projection: time to ground |
| Difficulty | Moderate -0.8 This is a straightforward SUVAT application with three standard parts using given values (u=4.2, t=1.5, a=9.8). Each part requires selecting and applying one kinematic equation with no conceptual difficulty or problem-solving insight—purely mechanical substitution into standard formulas that students practice extensively. |
| Spec | 3.02d Constant acceleration: SUVAT formulae3.02h Motion under gravity: vector form |
1 A particle $P$ is projected vertically downwards from a fixed point $O$ with initial speed $4.2 \mathrm {~ms} ^ { - 1 }$, and takes 1.5 s to reach the ground. Calculate\\
(i) the speed of $P$ when it reaches the ground,\\
(ii) the height of $O$ above the ground,\\
(iii) the speed of $P$ when it is 5 m above the ground.
\hfill \mbox{\textit{OCR M1 2010 Q1 [6]}}