Question

A river flow of width 100 m is flowing with velocity of 1.5 m/s .A man start from one end with rest relative to river .He raws with an acceleration of 2 m/s^2 relative to the river if the man want to cross river in minimum time by how much distance will he be drifted in the direction of rivet flow during crossing

Answer 1

x = 1/2 at^2 (across)
solve for t
x = vt (downstream)

Answer 2

PS. He's rowing 10 m/s by the end of this. Don't think too many people can row 22 mph....

Answer 3

Oops. I mean 20 m/s. Even more ridiculous.