DP Physics (last assessment 2024)
Question 17N.2.SL.TZ0.f
| Date | November 2017 | Marks available | [Maximum mark: 2] | Reference code | 17N.2.SL.TZ0.f |
| Level | SL | Paper | 2 | Time zone | TZ0 |
| Command term | Outline | Question number | f | Adapted from | N/A |
f.
[Maximum mark: 2]
17N.2.SL.TZ0.f
A girl on a sledge is moving down a snow slope at a uniform speed.
The coefficient of static friction between the sledge and the snow is 0.14. Outline, with a calculation, the subsequent motion of the sledge.
[2]
Markscheme
calculates a maximum value for the frictional force = «μR=» 7.5 «N»
sledge will not move as the maximum static friction force is greater than the component of weight down the slope
Allow correct conclusion from incorrect MP1
Allow 7.5 > 6.1 so will not move
