A winch on a marine research vessel lifts a deep-sea robotic submersible vertically through a distance of 680 m680\text{ m}680 m towards the ocean surface.
The mass of the submersible is 1400 kg1400\text{ kg}1400 kg.
The gravitational field strength is 9.8 N/kg9.8\text{ N/kg}9.8 N/kg.
Calculate the increase in gravitational potential energy of the submersible.
Give your answer to 2 significant figures.
Practise AQA GCSE Physics Energy changes in a system, and the ways energy is stored before and after such changes with exam-style questions for Foundation and Higher tier. 64 questions covering Energy stores and systems, Changes in energy, Energy changes in systems, and Power, matched to the AQA GCSE Physics (8463) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.