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3.2 Kinematics

3.2 Kinematics

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Question 147

A car is travelling along a straight road at 25 m s-1. The driver has a reaction time of 0.8 s, during which the car continues at constant speed. The brakes are then applied and the car decelerates uniformly at 5 m s-2 until it stops.

a.

Find the distance travelled during the reaction time.

[2]
b.

Find the distance travelled while the car is braking.

[2]
c.

Find the total stopping time and the total stopping distance.

[2]
Markscheme

3.2 Kinematics Questions

  1. A Level
  2. /Maths
  3. /3.2 Kinematics

260 exam-style questions on OCR A Level Maths 3.2 Kinematics, covering 3.2.1 Language of kinematics, 3.2.2 Graphs in kinematics, 3.2.3 Displacement-time and velocity-time graphs, 3.2.4 Constant acceleration formulae, 3.2.5 Constant acceleration in two dimensions (A-level only), 3.2.6 Non-uniform acceleration in one dimension (A-level only), 3.2.7 Non-uniform acceleration in two dimensions (A-level only), 3.2.8 Motion under gravity using vectors (A-level only), and 3.2.9 Projectiles (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.

Question bank