Question

At the end of successive intervals of 2 seconds,the speed of a speedometer in km/h are 35.6,50.7,61.3,72.5,78.9,84.0,88.1,91.5

From your graph

a) calculate the distance in meters when it moves from 77 to 88km/h

Answer 1

The distance:

$$d=\dfrac{88^2-77^2}{2·2·0.2446·3600}=0.515\text{ km}.$$