A bus travelled a distance of 3 km in 5 seconds. What is the speed of the bus over this distance?
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → 2160 km/hr
Speed is distance ÷ time, and 1 m/s \(=\frac{18}{5}\) km/hr (3600 s in an hour, 1000 m in a km).
Speed \(=3000\div5=600\) m/s
\(\displaystyle 600\times\frac{18}{5}=2160\) km/hr