NDA2019General AbilityGeneral ScienceActual
A car starts from Bengaluru, goes 50 km in a straight line towards south, immediately turns around and returns to Bengaluru. The time taken for this round trip is 2 hours. The magnitude of the average velocity of the car for this round trip.
Options
- Ais 0 .
- Bis 50 ~km / hr .
- Cis 25 ~km / hr .
- Dcannot be calculated without knowing acceleration.
Correct answer
A. is 0 .
Step-by-step solution
The average velocity of an object is its total displacement divided by the total time taken, since the displacement is zero, the average speed is also zero.