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Mathematics (AS & A Level) · Oct / Nov 2025 · Paper 45 · Question 3

9709

As printed in the paper

The question as text

A car of mass 800 kg is moving on a straight road. When the car is moving at a constant speed of ms 20 1 - on a horizontal section of the road, the engine of the car is working at P W. When the car is moving at a constant speed of ms 12 1 - up a section of the road inclined at . sin 0 15 1 - to the horizontal, the engine of the car is also working at P W. On both sections of the road there is a constant force of magnitude R N resisting the motion of the car.

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Show the answer and mark scheme
  • 3(a)[5]

  • 3(b)[3]

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