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what is the formula for finding average speed. Speed of tractor d i s t a n c e t i m e 360 12 30kmhr. Speed of car 3 15 45 kmhr.
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The formula looks like this. A man whose speed is 8 kmph in still water rows to a certain upstream point and back to the starting point in a river which flows at 3 kmph find his average speed for the total journey. Average Speed Total DistanceTotal Time.
The formula is s a b 2 displaystyle sfrac ab2 where s displaystyle s equals the average speed a displaystyle a equals the speed for the first half of the time and b displaystyle b equals the speed for the second half of the time.
Both the ways he covers the same distance but at different speeds. Speed Distance Time The metric unit of the result will depend on the units you put in. It is the distance covered divided by time. In general average speed formula is.
