A bus travel, a distance of 20km from Chennai central airport in 45 minutes. What is the average speed?
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Do you know about average speed ?
Average speed is the ratio of total distance covered by particle to total time taken. e.g., < v > = total distance/total time.
Here, < v > denotes average speed.
Given,
Total distance = 20 km
total time taken = 45 min = 45/60 hr = 3/4 hr
Now, average speed = 20/(3/4) = 80/3 km/h = 26.67 km/h
Hence, average speed = 26.67 km/h
[note:- if you want to find speed in m/s , then just multiply 5/18 with speed given in km/h. Like here, average speed in m/s = 26.67 × 5/18 = 7.4 m/s]
Average speed is the ratio of total distance covered by particle to total time taken. e.g., < v > = total distance/total time.
Here, < v > denotes average speed.
Given,
Total distance = 20 km
total time taken = 45 min = 45/60 hr = 3/4 hr
Now, average speed = 20/(3/4) = 80/3 km/h = 26.67 km/h
Hence, average speed = 26.67 km/h
[note:- if you want to find speed in m/s , then just multiply 5/18 with speed given in km/h. Like here, average speed in m/s = 26.67 × 5/18 = 7.4 m/s]
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