Photo AI

A car is travelling along a straight road - Edexcel - GCSE Physics - Question 3 - 2017 - Paper 1

Question icon

Question 3

A-car-is-travelling-along-a-straight-road-Edexcel-GCSE Physics-Question 3-2017-Paper 1.png

A car is travelling along a straight road. a) (i) The driver has to brake suddenly. The thinking distance is 18 m and the braking distance is 55 m. Calculate the st... show full transcript

Worked Solution & Example Answer:A car is travelling along a straight road - Edexcel - GCSE Physics - Question 3 - 2017 - Paper 1

Step 1

Calculate the stopping distance of the car.

96%

114 rated

Answer

To calculate the stopping distance of the car, we can add the thinking distance and the braking distance together. The formula is:

stopping distance=thinking distance+braking distance\text{stopping distance} = \text{thinking distance} + \text{braking distance}

Substituting in the values: stopping distance=18 m+55 m=73 m\text{stopping distance} = 18 \, \text{m} + 55 \, \text{m} = 73 \, \text{m}

Step 2

State one factor that could increase the driver’s reaction time.

99%

104 rated

Answer

One factor that could increase the driver’s reaction time is:

  • driving too long without a rest.

Step 3

State one factor that could increase the braking distance of the car.

96%

101 rated

Answer

One factor that could increase the braking distance of the car is:

  • poor or worn/faulty brakes.

Step 4

Complete the sentence by putting a cross (X) in a box next to your answer.

98%

120 rated

Answer

Air bags reduce injuries to drivers in a collision by:

  • a) decreasing the kinetic energy of the car
  • b) increasing the time a resultant force acts on the driver
  • c) decreasing the driver’s thinking time
  • d) increasing the rate of change of momentum of the driver

Join the GCSE students using SimpleStudy...

97% of Students

Report Improved Results

98% of Students

Recommend to friends

100,000+

Students Supported

1 Million+

Questions answered

;