5. A cruise ship sails east at a speed of 10 m/s. A nearby oil tanker sails west at a speed What is the person swimming on the cruise ship's speed relative to the tanker?

it is 5he submarine cable frequently asked questions about the following

c. magnitude and direction

see the picture for the vector

the magnitude of the vector by pythagorean theorem

r = √( (-10)^2 + (3)^2 ) = √109

magnitude = √109 units

the direction angle between vector and x-axis is

tan^(-1)(3/10) = 16.699

so the direction is approximately 16.7 degrees north of west