car travels from A to B at 60 km/hr and returns to A at 90 kmlhr. What is its average velocity and average speed?
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avarage speed is 75km/h
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Average velocity = 0 (as dispacement is zero )
average speed = (2×60×90)/(60+90)
= (2×60×90)/150 = 72 km /hr
Hope it helps
average speed = (2×60×90)/(60+90)
= (2×60×90)/150 = 72 km /hr
Hope it helps
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