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GCSE Questions: Forces

Q24. The driver of a vehicle sees a hazard on the road.

(a) The driver uses the brakes to stop the vehicle. Explain the factors that affect the distance needed to stop a vehicle in an emergency.

[6 marks]

(b) Write down the equation which links distance, force and work done.

[1 mark]

(c) The work done by the braking force to stop a vehicle was 900,000 J.

The braking force was 60,000 N

Calculate the braking distance of the vehicle.

[3 marks]

(d) The greater the braking force, the greater the deceleration of a vehicle. Explain the possible dangers caused by a vehicle having a large deceleration when it is braking.

[2 marks]

[12 Marks TOTAL]