The distance travelled by the bike can be calculated by using the basic relationship between speed (v), distance (S) and time (t):
![v=(S)/(t)](https://img.qammunity.org/2019/formulas/physics/high-school/ig0h9m8v4b4awyr06cyyv68yj2zuldjad5.png)
Rearranging the equation, we get
![S=vt](https://img.qammunity.org/2019/formulas/physics/high-school/fro6tmi9yo810brq9dubeyq3k8od43ohiw.png)
The speed of the bike is v=3 m/s, the time is t=30 s, so the distance travelled by the bike is
![S=vt=(3 m/s)(30 s)=90 m](https://img.qammunity.org/2019/formulas/physics/high-school/v1h7ip99mjmjtmylusar0tbwvau7fwx4cz.png)