A powered inspection carriage moves along a straight horizontal rail. Its mass remains constant.
The forces acting along the rail in two operating conditions are shown in the table.
| Operating condition | Motor force forwards | Resistive force backwards |
|---|---|---|
| 1 | 760 N | 160 N |
| 2 | 1060 N | 160 N |
Calculate the factor by which the acceleration of the carriage changes from operating condition 1 to operating condition 2.
103 exam-style questions on Edexcel GCSE Physics 2.3 Forces and Newton's laws, covering 2.3.1 Newton's first law, 2.3.2 Newton's second law, and 2.3.3 Weight and gravitational field strength. Each one has a worked solution and a mark scheme showing where the marks go.