An engineer wants to determine the average speed of a miniature automated submersible as it cruises in a horizontal circular path around the inner wall of a cylindrical test tank.
Describe a practical method that the engineer could use to find the average speed of the submersible, including details of the measurements to be taken, the equipment used, and how to minimize experimental error.
24 exam-style questions on Edexcel IGCSE Physics Movement and position. Each one has a worked solution and a mark scheme showing where the marks go.