Concepts Of Physics MCQ Edition [Volume 1]PhysicsRest and Motion Kinematics
The distance from Patna to Ranchi is 260 km by air and 320 km by road. An aeroplane requires 30 minutes to travel from Patna to Ranchi, while a delux bus takes 8 hours. Determine the average speed of the bus in km/h.
Options
- A40
- B32.5
- C80
- D50
Correct answer
A. 40
Step-by-step solution
The total distance covered by the bus by road is d = 320 km . The total time taken by the bus is t = 8 h . The average speed of the bus is given by the ratio of total distance to total time: Average speed = d t Average speed = 320 8 = 40 km/h