During a marine salvage operation, three containers, XXX, YYY, and ZZZ, are lifted vertically from the seabed to the deck of a ship by a crane.
The table below shows the technical data recorded during the lifts.
| Container | Weight (kN) | Distance lifted (m) | Work done (kJ) | Time taken (s) | Average Power (kW) |
|---|---|---|---|---|---|
| XXX | 7.2 | 12.5 | 90.0 | 15.0 | 6.0 |
| YYY | 12.5 | 106.25 | 25.0 | 4.25 | |
| ZZZ | 9.6 | 12.5 | 120.0 | 20.0 | 6.0 |
Use the data for container YYY to calculate its weight.
57 exam-style questions on Edexcel GCSE Physics 8.1 Energy transfers and work. Each one has a worked solution and a mark scheme showing where the marks go.