A river flows east at 3 m s-1. A boat must have ground velocity 4 j m s-1 due north. Find its requir

Question

A river flows east at 3 m s-1. A boat must have ground velocity 4 j m s-1 due north. Find its required water-relative velocity and its speed through the water.

Accepted Answer

$-3\mathbf i+4\mathbf j\text{ m s}^{-1};\quad5\text{ m s}^{-1}$

A required ground velocity

A required ground velocity

Solution:

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