A man can row a boat in still water at 1.5 ms^-1. He rows across a 45 m wide riv

Question

A man can row a boat in still water at 1.5 ms^-1. He rows across a 45 m wide river with his boat always pointing perpendicular to the banks. If the river is flowing parallel to the banks at 2 ma^-1, what will be the magnitude of his resultant velocity (in ms^-1)?
Show working if possible, thanks! A man can row a boat in still water at 1.5 ms^-1. He rows across a 45 m wide river with his boat always pointing perpendicular to the banks. If the river is flowing parallel to the banks at 2 ma^-1, what will be the magnitude of his resultant velocity (in ms^-1)?
Show working if possible, thanks! A man can row a boat in still water at 1.5 ms^-1. He rows across a 45 m wide river with his boat always pointing perpendicular to the banks. If the river is flowing parallel to the banks at 2 ma^-1, what will be the magnitude of his resultant velocity (in ms^-1)?
Show working if possible, thanks!

Explanation / Answer

here

the magnitude of the resultant velocity is

v^2 = 1.5^2 + 2^2

v^2 = 6.25

v = 2.5 m/s

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