A train covers first 10 km with speed 2km/h and next 20 km with speed 5km/h. Calculate average speed and average velocity of the train.
Answers
Given : A train covers first 10 km with speed 2km/h and next 20 km with speed 5km/h.
To Find : Calculate average speed and average velocity of the train.
Solution:
A train covers first 10 km with speed 2km/h
Distance = Speed * Time
=> Time taken = 10/2 = 5 hrs
next 20 km with speed 5km/h.
=> Time taken = 20/5 = 4 hrs
Total Time taken = 5 + 4 = 9 hrs
Distance covered = 10 + 20 = 30 km
Average Speed = 30/9 = 10/3 = 3.33 km/hr
average velocity of the train. can not be find as direction of train is not given
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Answer:
hope it is your helping...
