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31 January, 09:48

2. A woman pulls a 20 kg suitcase along a 15 m corridor using a horizontal force of 50 N.

2.1 Calculate the work done by the woman. Give the correct unit.

Work done = ... Unit = ...

2.2 Work has to be done against frictional forces acting on the wheels of the suitcase.

Explain the effect this has on the temperature of the suitcase.

...

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Answers (1)
  1. 31 January, 10:13
    0
    force x distance = 50 x 15 = 750 joules

    work against friction goes to heat warmer
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