During a test flight of an autonomous cargo drone, its total mass is 48 kg.
At its maximum horizontal cruising speed, its kinetic energy (EkE_kEk) is measured to be 5400 J.
Calculate the velocity (vvv) of the drone at this point.
Use the equation:
v2=2×Ekm v^2 = \frac{2 \times E_k}{m} v2=m2×Ek82 exam-style questions on Edexcel GCSE Physics 3.1 Energy stores and calculations. Each one has a worked solution and a mark scheme showing where the marks go.