An acoustic signal emitted by a marine research drone under the Arctic ice sheet travels a distance of 3.0 km in a time of 2.0 s at a constant speed.
State the equation linking speed, distance, and time.
53 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.