Physics, asked by angiewallendal9351, 1 year ago

A man can row at a speed of 12 km/hr in still water to a certain upstream point and back to the starting point in a river which flows at 3 km/hr. Find his average speed for total journey.

Answers

Answered by ashwanisingh2001

6

downstream speed =12-3=9km/h

avg speed = 2*12*3/(12+3)

= 4.8km/h

Answered by NobleReji

7

answer is very simple hope you like it

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