A man who can swin with a velocity v_(b) in still water wants to cross a rivera river in minimum possible time, if the river is flowing with a velocity v_(w) and b , x are the width and drift respectively, the actual distance travelled by the man is .

A man who can swin with a velocity v_(b) in still water wants to cross

1.	A man who can swin with a velocity v_(b) in still water wants to cross a rivera river in minimum possible time, if the river is flowing with a velocity v_(w) and b , x are the width and drift respectively, the actual distance travelled by the man is .
Answer» x B `sqrt(b^(2)+x^(2))` `sqrt(b^(2)-x^(2))` Answer :C