A migrating salmon heads in the direction N 45° E, swimming at 5 mi/h relative to the water. The prevailing ocean currents flow due east at 2 mi/h. Find the true velocity of the fish as a vector. (Assume that the i vector points east, and the j vector points north.)

Explanation:

velocity of salmon with respect to water, v(s,w) = 5 mi/h at N 45° E

velocity of water with respect to ground, v(w,g) = 2 mi/h due east

Let the true velocity of salmon is velocity of salmon with respect to water is v(s,g)

First write the velocities in vector from

Using the formula of relative speed,

This i the true velocity of salmon.

c

explanation:

the components of a vector are the parts of the vectors that are to each other.

b perpendicular