A football of mass 450 g rolls west across a level pitch. The table shows the velocity of the football at different times.
| Time / s\mathrm{s}s | 0 | 0.50 | 1.00 | 1.50 | 2.00 |
|---|---|---|---|---|---|
| Velocity westwards / m s−1\mathrm{m\,s^{-1}}ms−1 | 8.0 | 7.4 | 6.8 | 6.2 | 5.6 |
What is the resultant force on the football?
1.26 N1.26\ \mathrm{N}1.26 N westwards
0.54 N0.54\ \mathrm{N}0.54 N eastwards
1.08 N1.08\ \mathrm{N}1.08 N eastwards
5.4 N5.4\ \mathrm{N}5.4 N eastwards
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.