All Problems

Kinematics

Problem 1.9

A boat moves relative to water with a velocity which is \(n\) \(=2.0\) times less than the river flow velocity. At what angle to the stream direction must the boat move to minimize drifting?

Reveal Answer
θ=arcsin(1/n)+π/2=120\theta=\arcsin (1 / n)+\pi / 2=120^{\circ}