A camera drone must complete a 900 m survey route with an average speed of 6.0 m/s. It covers the first 300 m in 30 s and begins the remaining part immediately at a constant speed.
What is the constant speed needed for the remaining part of the route?
6.0 m/s6.0\ \mathrm{m/s}6.0 m/s
2.0 m/s2.0\ \mathrm{m/s}2.0 m/s
4.0 m/s4.0\ \mathrm{m/s}4.0 m/s
5.0 m/s5.0\ \mathrm{m/s}5.0 m/s
96 exam-style questions on Edexcel GCSE Physics 2.2 Speed, velocity and acceleration, covering 2.2.1 Speed and distance–time graphs, 2.2.2 Acceleration and the uniform-acceleration equation, 2.2.3 Velocity–time graphs, and 2.2.4 Measuring speed, typical speeds and free-fall acceleration. Each one has a worked solution and a mark scheme showing where the marks go.