Energy stores, work done and energy calculations

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Question 38
Easy

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.

ContainerWeight (kN)Distance lifted (m)Work done (kJ)Time taken (s)Average Power (kW)
XXX7.212.590.015.06.0
YYY12.5106.2525.04.25
ZZZ9.612.5120.020.06.0

Use the data for container YYY to calculate its weight.

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Energy stores, work done and energy calculations Questions

  1. GCSE
  2. /Physics
  3. /Energy stores, work done and energy calculations