That's right - "deg" = "degrees" (it's easier to type than those little circles).90 degrees? As in a right angle? Can you clarify that
A vector is a quantity that has both magnitude (size) and direction. It is represented by an arrow, with the length of the arrow representing the magnitude and the direction of the arrow pointing in the direction of the vector.
The magnitude of a vector can be found using the Pythagorean theorem, where the magnitude is equal to the square root of the sum of the squares of the vector's components. For example, if the X component of a vector is 3 and the Y component is 4, the magnitude would be √(3² + 4²) = √25 = 5.
The X and Y components of a vector are the horizontal and vertical parts of the vector, respectively. They represent the amount and direction of movement in each direction.
The X and Y components of a vector can be found using trigonometric functions. The X component can be found by multiplying the magnitude of the vector by the cosine of the angle between the vector and the X-axis. The Y component can be found by multiplying the magnitude of the vector by the sine of the angle between the vector and the Y-axis.
Yes, a vector can have negative components. This indicates that the vector is pointing in the opposite direction of the positive component. For example, a vector with an X component of -3 and a Y component of 4 would have a magnitude of 5 and would be pointing in the second quadrant, towards the negative X direction and positive Y direction.