Relative Motion in a Plane (HSC SSCE Physics): Quizzes

The viewpoint from which motion is observed

$\vec{v}_{1 \text{ relative to } 2} = \vec{v}_1 - \vec{v}_2$

Add the negative of the second vector

Moving backwards at 2 m/s

Pythagoras' theorem

To counteract the river's current

When velocities are not perpendicular

25 m/s

$\vec{s}_{1 \text{ relative to } 2} = \vec{d}_1 - \vec{d}_2$

$\tan \theta$