Answer:
Explanation:
Average speed= Total distance/ Total time
Initial reading= 2200
final reading= 3800
total distance= Final reading -initial reading = 3800-2200 = 1600 km
total time= 20 hrs
Average speed= 1600/20
= 80 km/hr
CONVERTING km/hr TO m/s
To convert km/hr to m/s just multiply
Recall that,
1000m = 1 km
60 secs = 1 min
60 mins = 1 hr
( 80 × 1000 ) meters / ( 60×60 ) secs
80000m / 3600s
= 22.22m/s
Answer:
Average speed = 80 km/hr
Average velocity = 0 km/hr
Explanation:
Average velocity is given by
Average velocity = Displacement / Time taken
And Average speed is given by
Average speed = Total distance / Time taken
To calculate the average speed, we will first find the total distance,
Total distance = Final reading of the odometer - Initial reading of the odometer
Hence,
Total distance = 3800km - 2200km
Total distance = 1600km
From the question, the time taken = 20hrs
Therefore,
Average speed = 1600km ÷ 20hrs
Average speed = 80 km/hr
To calculate the average velocity, we will find the displacement.
Displacement is the distance traveled in a straight line OR the shortest distance from the initial to the final position.
Since the car returned back to its initial position (Bangalore), the displacement is zero.
From,
Average velocity = Displacement / Time
Hence,
Average velocity = 0 ÷ 20
Average velocity = 0 km/hr
The average velocity is 0 km/hr
