A boat moves at 6 m/s in still water on a river that flows at 2 m/s. It goes 160 m upstream and back. How long does the round trip take?

PhysicsMediumHigh School (11–12)Mechanics › Relative Motion

A boat moves at $6\ \text{m/s}$ in still water on a river that flows at $2\ \text{m/s}$ . It goes $160\ \text{m}$ upstream and back. How long does the round trip take?

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