User interface language: English | Español

Date November 2013 Marks available 1 Reference code 13N.1.SL.TZ0.3
Level Standard level Paper Paper 1 Time zone Time zone 0
Command term Question number 3 Adapted from N/A

Question

A tennis ball is dropped from the top of a high building. Air resistance cannot be neglected. Which graph represents the variation with time t of the magnitude of the acceleration a of the ball before it hits the ground?

Markscheme

B

Examiners report

Although in an examination, candidates still need to appreciate when they may need to take a little more time to fully understand the question and appreciate the labelling on the axis of the graphs. A sizeable number of candidates opted for A despite this being the only graph which begins with an acceleration of 0. The typical velocity-time graph for objects falling in air would be of this shape and this seems to led to confusion for these candidates.

Syllabus sections

Core » Topic 2: Mechanics » 2.1 – Motion
Show 111 related questions

View options