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Articles Home » CRT » 19 BOATS AND STREAMS

19 BOATS AND STREAMS

IMPORTANT FACTS AND FORMULAE

 

1.In water ,the direction along the stream is called downstream and ,the direction against the stream is called upstream.

 

2.If the speed of a boat in still water is u km/hr and the speed of the stream is v km/hr,then:

             speed downstream=(u+v)km/hr.

             speed upstream=(u-v)km/hr.

 

3.If the speed downstream is a km/hr and the speed upstream is b km/hr,then :

speed in still water=1/2(a+b)km/hr

rate of stream=1/2(a-b)km/hr

· Posted by Superadmin on September 09 2016 · 0 Comments · 492 Reads · Print

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