Apoint p1 is located by the vector a = (3.74)î + (1.64)ĵ and a point p2 is located by the vector b = (1.60)î + (3.66)ĵ. the vector c locates the point p2 relative to the point p1. determine the following. (a) the vector crightharpoonhead.gif which points from the point p1 to the point p2

Explanation:

The vector that point from point P1 to point P2 its found simply by taking the vector at which point P2 its located and subtracting the vector at which point P1 its located:

So:

Speed and velocity are not the same thing. Velocity is how fast an object is going and its direction. Since the velocity’s formula is distance multiplied to time (seconds), velocity’s unit would be m/s. But velocity needs to be with a direction of where the objects going.
45m/s north and 0m/s south both has the unit that is need and direction. But 0m/s south is not moving at all, yet it does tells us how the object is going that leads us to the appropriate answer, 45m/s north.