marygailbowen3164 marygailbowen3164

28-02-2024
Physics

contestada

A man can swim with a speed of 4.0 km/h in still water. How long does he take to cross a river 1.0 km wide if the river flows at 2.0 km/h?
a) 30 minutes
b) 45 minutes
c) 1 hour
d) 1 hour 15 minutes

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