physics

A ferryboat traveling at a speed of 30 km/h attempts to cross a river with a current of 5 km/h. What is the boat's speed relative to the shore?

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1. X = 30 km/h
Y = 5 km/h

V^2 = 30^2 + 5^2 = 925
V = 30.4 km/h

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posted by Henry

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