| Exam Board | Edexcel |
|---|---|
| Module | M1 (Mechanics 1) |
| Marks | 5 |
| Paper | Download PDF ↗ |
| Mark scheme | Download PDF ↗ |
| Topic | SUVAT in 2D & Gravity |
| Type | Modelling assumptions and limitations |
| Difficulty | Easy -1.2 Part (a) is a straightforward one-step SUVAT calculation (s = ut + ½at²) with standard values. Part (b) requires stating that air resistance affects lighter objects more, which is a standard modelling discussion in M1. This is easier than average as it combines routine calculation with textbook modelling knowledge requiring minimal problem-solving. |
| Spec | 3.02h Motion under gravity: vector form |
| Answer | Marks | Guidance |
|---|---|---|
| (a) \(s = \frac{1}{2}g t^2 = \frac{1}{2} \times 9.8 \times 1.7^2 = 14.2 \text{ m}\) | M1 A1 A1 | |
| (b) Lighter ball may be more affected by air resistance; include this | B1 B1 | 5 marks |
(a) $s = \frac{1}{2}g t^2 = \frac{1}{2} \times 9.8 \times 1.7^2 = 14.2 \text{ m}$ | M1 A1 A1 |
(b) Lighter ball may be more affected by air resistance; include this | B1 B1 | 5 marks\begin{enumerate}
\item A golf ball and a table tennis ball are dropped together from the top of a building. The golf ball hits the ground after 1.7 seconds.\\
(a) Calculate the height of the top of the building above the ground.
\end{enumerate}
According to a simple model, the two balls hit the ground at the same time.\\
(b) State why this may not be true in practice and describe a refinement to the model which could lead to a more realistic solution.\\
\hfill \mbox{\textit{Edexcel M1 Q1 [5]}}