A swimmer can swim in still water at $2 m/s$ . In what minimum time he can cross a $400 m$ wide river flowing at $4 m/s$ ?

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Solution

Answer (1)

$t = \frac{400}{2}$
$t = 200 seconds$

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A swimmer can swim in still water at 2 m/s. In what minimum time he can cross a 400 m wide river flowing at 4 m/s?

Answer (1) t=4002 t=200 seconds

A swimmer can swim in still water at $2 m/s$ . In what minimum time he can cross a $400 m$ wide river flowing at $4 m/s$ ?

Answer (1)

$t = \frac{400}{2}$
$t = 200 seconds$