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Physics · May / June 2022 · Paper 11 · Question 2

5054Friction

A driver drives a car at uniform velocity along a road. The driver sees a hazard and applies the brakes. What is the car's motion as it moves through the thinking distance and as it moves through the braking distance?

  1. Amotion through the thinking distance: deceleration, motion through the braking distance: deceleration
  2. Bmotion through the thinking distance: deceleration, motion through the braking distance: uniform velocity
  3. Cmotion through the thinking distance: uniform velocity, motion through the braking distance: deceleration
  4. Dmotion through the thinking distance: uniform velocity, motion through the braking distance: uniform velocity

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Correct answer: C. motion through the thinking distance: uniform velocity, motion through the braking distance: deceleration

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