Edexcel IGCSE Physics 1.9 Distance From Velocity Time Graphs Questions
Read the graph scale and combine the relevant areas to find the distance travelled over part or all of a journey.
- Syllabus
- First assessment 2019
- Course
- Physics 4PH1
Read the graph scale and combine the relevant areas to find the distance travelled over part or all of a journey.
The diagram shows a velocity-time graph for a car from the time the driver sees an obstacle in the road until the car comes to rest.
Calculate the braking distance of the car.
braking distance = ............ m
- clear indication that distance is area under the line
- understanding that braking distance is area of triangle section only
- evaluation
Example:
- distance = area
- distance = 0.5 x 30 x 6.2
- distance = 93 m
Accept:
- alternative method using ECF from 4(a)(i) and v^2 = u^2 + 2as, giving 93.75 m
- 54 m scores 1 mark
- 147 m scores 2 marks