Question

a boat moves through the water of a river at 5.8m/s relative to the water, regardless the boat's direction. if the current is flowing at 5.04m/s, how long does it take the boat it take the boat to complete a trip consisting of a 443m displacement downstream followed by a 348m displacement upstream?

Answer 1

T = d1/V1 + d2/V2
T = 443/(5.8+5.04) + 348/(5.8-5.04) =
40.87 + 457.9 = 498.8 s. = 8.3 Min.