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Grade: 11

                        

In river crossing problems why we consider velocity of man wrt water as velocity of man in still water?

4 years ago

Answers : (1)

Umakant biswal
5359 Points
							
@ pratyay 
it is beacuse of the easy calculation purpose , if we will take the water as moving , then the calculation will be bulky and that effect the value of the velocity of the swimmer also , 
and also , in most of the ques the velocity in which water is moving , not mentioned , 
so, in that case for simplicity of calculation we are assuming it as still water . 
EVEN IN ONE YEAR JEE ADVANCED ASKS THIS QUES AS THAT OF MOVING WATER .. 
hope it clears your doubt 
4 years ago
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