In a distance–time graph of a car

PHYSICS · Single correct · A Level · Physics · Mechanics and materials · Mechanics and materials

Problem

In a distance–time graph of a car, the position is

12\,\text{m}

t=3\,\text{s}

and

54\,\text{m}

t=9\,\text{s}

. Calculate the average speed of the car between

3\,\text{s}

and

9\,\text{s}

. (a)

7\,\text{m/s}

(b)

6\,\text{m/s}

(c)

9\,\text{m/s}

(d)

4.7\,\text{m/s}