| Date | May 2017 | Marks available | 1 | Reference code | 17M.1.HL.TZ2.18 |
| Level | Higher level | Paper | Paper 1 | Time zone | Time zone 2 |
| Command term | Question number | 18 | Adapted from | N/A |
Question
A small ball of weight W is attached to a string and moves in a vertical circle of radius R.
What is the smallest kinetic energy of the ball at position X for the ball to maintain the circular motion with radius R?
A. \(\frac{{W\,R}}{2}\)
B. W R
C. 2 W R
D. \(\frac{{5W\,R}}{2}\)
Markscheme
D
Examiners report
[N/A]
Syllabus sections
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