Question

A car takes 4hrs to travel from Bangalore to Chennai whereas the flight takes only 30min to travel from Bangalore to Chennai. If the distance from Bangalore to Chennai by road is 400km and the air is 150km. Calculate the average speed and average velocity of flight and car.

Answer in the given order (in $\frac{km}{hr}$ ):

Find the average speed of flight, the average velocity of flight, the average speed of the car, the average velocity of the car.

• A. 300 , 300, 37.5 , 100
• B. 300 , 37.5, 100 , 100
• C. 300, 300, 200, 100
• D. 300, 300, 100, 37.5

Answer 1

The correct option is D

300, 300, 100, 37.5

We know, Avergae speed = $\frac{Totaldistance}{Totaltime}$

Average velocity = $\frac{Totaldisplacement}{Totaltime}$

(Average Speed)_flight = $\frac{150}{0.5}=300\frac{km}{hr}$

(Average Velocity)_flight = $\frac{150}{0.5}=300\frac{km}{hr}$

(Average Speed)_car = $\frac{400}{4}=100\frac{km}{hr}$

(Average Velocity)_car = $\frac{150}{4}=37.5\frac{km}{hr}$