suppose a boy Travels a distance 20 km by walking in 30 minutes then written by an auto within 2 minutes find its average speed and average velocity
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Correct option is
B
7.2
Boojho Home to school to again home
From home to school distance is 3 km time taken is 30 min = (30/60) hour = 0.5 hour
And in returning from school to home time taken = 20 min = (20/60) hour = 0.33 hour
average speed = Total distance / time taken
= (3 + 3)/(0.5 + 0.33) km/h
= 7.2 km/h
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