A force has a magnitude of 15 newtons and has the same direction (but different magnitude) as the vector = 2 + + 2 . This force pushes an object on a ramp in a straight line from the point P(4, 2, 5) to the point (5, 4, 8), where the coordinates are measured in meters.
Find the force by writing it in terms of the standard unit vectors, ,, and .