Skip to content

Course home

8 Energy – forces doing work

8 Energy – forces doing work

EasyMediumHard
123456789101112131415
Question 5

An automated deep-sea winch hoists a scientific core sample weighing 14 000 N14\,000\text{ N}14000 N from the ocean floor up to a research vessel.

The sample is lifted vertically through a height of 450 m.

The useful power developed by the winch motor is 3.5 kW.

Calculate the time, in seconds, needed to hoist the sample to the vessel.

[3]
Markscheme

8 Energy – forces doing work Questions

  1. GCSE
  2. /Physics
  3. /8 Energy – forces doing work

Question bank