A ferry is crossing a river. The ferry is headed
due north with a speed of 2.8 m/s relative to
the water and the river’s velocity is 4.9 m/s
to the east.
a) What is magnitude of the boat’s velocity
relative to Earth
Physics - drwls, Monday, October 17, 2011 at 10:04am
Add the two vectors. The two vectors (ferry rel. to water and water rel. to land) are at right angles, so the magnitude is the hypotenuse.
|V| = 5.64 m/s