Question

A boy cycles continuously through a distance of 1.0km in 5minutes .calculate his average speed

Answer 1

By definition, the average speed is total distance $d = 1km = 1000m$ divided by total time $t = 5min = 300s$ of motion. Thus, obtain:

$$v_{av} = \dfrac{d}{t} = \dfrac{1000m}{300s} \approx 3.33m/s$$

Answer. 3.33 m/s.