A car needs $15$ minutes to cover a road that is $20\ \text{km}$ in length. What is the average speed of the car?
- A$0.75\ \text{km h}^{-1}$
- B$5.0\ \text{km h}^{-1}$
- C$80\ \text{km h}^{-1}$
- D$300\ \text{km h}^{-1}$
Physics 0625 · IGCSE · Motion
Physics 0625 · IGCSE · Motion
A car needs $15$ minutes to cover a road that is $20\ \text{km}$ in length. What is the average speed of the car?