| Date | November 2015 | Marks available | 1 | Reference code | 15N.1.SL.TZ0.4 |
| Level | Standard level | Paper | Paper 1 | Time zone | Time zone 0 |
| Command term | Question number | 4 | Adapted from | N/A |
Question
Which of the following is proportional to the net external force acting on a body?
A. Speed
B. Velocity
C. Rate of change of speed
D. Rate of change of velocity
Markscheme
D
Examiners report
The forces have line symmetry about the tension, so C is the only possible answer.
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