A point B is at a distance of 5.0 m from a point A, and the displacement of B from A is in the direction specified by the unit vector r hatBA = [0.50ex − 0.71ey + 0.50ez]. If the position vector for A is rA = [3.0ex − 1.0ey + 2.0ez] m, what is the position vector rB of point B?

Question

A point B is at a distance of 5.0 m from a point A, and the displacement of B from A is in the direction specified by the unit vector  r hatBA = [0.50ex − 0.71ey + 0.50ez]. If the position vector for A is rA = [3.0ex − 1.0ey + 2.0ez] m, what is the position vector rB of point B?

anonymous · Answer

displacement = B - A  coordinate-by-coordinate (xB-xA, yB-yA, zB-aA)