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The Highway Code gives this information about the stopping distance of a car - Edexcel - GCSE Physics - Question 1 - 2012 - Paper 1
Question 1
The Highway Code gives this information about the stopping distance of a car. speed = 30 miles per hour thinking distance = 9 m braking distance = 14 m (a) (i) Wh... show full transcript
Worked Solution & Example Answer:The Highway Code gives this information about the stopping distance of a car - Edexcel - GCSE Physics - Question 1 - 2012 - Paper 1
Step 1
What is the stopping distance?
Answer
The stopping distance is the total distance the car travels while coming to a complete stop, which is the sum of the thinking distance and the braking distance. Given the thinking distance is 9 meters and the braking distance is 14 meters, the stopping distance can be calculated as follows:
Stopping Distance = Thinking Distance + Braking Distance
Stopping Distance = 9 m + 14 m = 23 m
Thus, the correct answer is D 23 m.
Step 2
Complete the sentence by putting a cross (✔) in the box next to your answer.
Answer
The driver’s thinking distance is most likely to increase when A the driver is tired. This is because fatigue can impair the driver's reaction time, leading to a longer thinking distance before the brakes are applied.
Step 3
Step 4
Step 5
Complete the sentence by putting a cross (✔) in the box next to your answer.
Answer
The work done by the brakes during braking is equal to A the energy transferred. This is because the work done by the brakes is the energy needed to stop the car, transforming kinetic energy into heat and other forms.