A student carries a rucksack using two shoulder straps. Each strap exerts a force normal to the student's shoulder.
The force exerted by a strap stays the same.
State how the area of the strap in contact with the shoulder should be changed to reduce the pressure on the shoulder.
The table gives data for the contact between one strap and the student's shoulder.
| Pressure exerted by the strap in Pa | Contact area in m2\text{m}^2m2 |
|---|---|
| 12 00012\,00012000 | 0.0030 |
Calculate the force exerted by the strap on the student's shoulder.
108 exam-style questions on AQA GCSE Physics 5.5 Pressure and pressure differences in fluids, covering 5.5.1 Pressure in a fluid and 5.5.2 Atmospheric pressure. Each one has a worked solution and a mark scheme showing where the marks go.