Which of the following is true?
A point has magnitude.
A point has length.
A point has direction.
A point is usually represented by a small dot and is named by a single capital letter of the alphabet. It has no direction and magnitude, i.e., has no length, breadth or thickness (no dimensions).
A vector a has magnitude 5 units and points north east and another vector b has magnitude 5 units and points north west. Then the magnitude of the vector a-b is?
Which could be the initial point of vector u if it has a magnitude of 17 and the terminal point 3,13?