Grade 11Mechanics
In river crossing problems why we consider velocity of man wrt water as velocity of man in still water?
1 Answer
Umakant biswal
Approved Tutor Answer9 Years ago@ 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
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
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