A body goes from A to B with a speed of 50 km/h, and then returns to the starting point with a speed of 40 km/h.Find (a) the average speed (b) the average velocity of the body.
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Onward speed = 50 km/h
Return speed = 40 km/h
(a). Average speed = 2(50 x40)/(50+40)
= 4000 / 90
= 44.44...km/h
(b). As it was not specified about media. Therefore, take air as media
Average speed = Average velocity
Return speed = 40 km/h
(a). Average speed = 2(50 x40)/(50+40)
= 4000 / 90
= 44.44...km/h
(b). As it was not specified about media. Therefore, take air as media
Average speed = Average velocity
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