Practice Questions
1.How can you find the speed of an object using a distance time graph
The gradient of the distance time graph is the speed.
2. Analyse the distance time graph below and answer the following questions.
A car was driven a short distance then stopped for a brief period, before driving for a further distance to complete its journey. Use the distance time graph above to answer the following questions
2a. How far did the car travel in the first 2 seconds
50m
2b. How long was the car stationary for
7 seconds – 2 seconds = 5 seconds
2c. During which time period was the car moving at the fastest speed?
0-2 seconds as the gradient has the steepest line
2d. Calculate the speed of the car between 0 to 2 seconds
50m/2seconds = 25m/s
2e. Calculate the speed of the car between 7 to 13 seconds.
Total distance travelled = 70m-50m =20m
Total time period = 13 seconds – 7 seconds = 6 seconds
Speed = 20m/6 seconds = 3.3 m/s
Speed = 3m/s
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