A bus travels 54 km in 90 minutes. The speed of the bus is
$(a)$. 0.6 m/s
$(b)$. 10 m/s
$(c)$. 5.4 m/s
$(d)$. 3.6 m/s

AcademicPhysicsNCERTClass 7

Distance traveled by the bus $=54\ km=54\times1000\ m=54000\ m$

Time taken to travel $=90\ minute=90\times60\ s=5400\ s$  

Therefore, the speed of the bus $=\frac{54000\ m}{5400\ s}=10\ m/s$

So, option $(b)$ is correct. 

Updated on 10-Oct-2022 13:29:54