| Date | May 2018 | Marks available | 1 | Reference code | 18M.1.SL.TZ2.3 |
| Level | Standard level | Paper | Paper 1 | Time zone | Time zone 2 |
| Command term | Question number | 3 | Adapted from | N/A |
Question
A motor of input power 160 W raises a mass of 8.0 kg vertically at a constant speed of 0.50 m s–1.
What is the efficiency of the system?
A. 0.63%
B. 25%
C. 50%
D. 100%
Markscheme
B
Examiners report
[N/A]
Syllabus sections
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