A vector quantity must specify both the size and the direction it would be completely understanding can be denoted by arrows directed above the letters, aV and use arrows instead of magnitude and direction, for example, a vector quantity, such as displacement, acceleration, velocity, force, momentum, etc. since the vector quantity are both size and direction.Able to add, subtract, multiply, divide, plain, they must use the vector calculation method, especially the 0 in vector. A quantity that is actually a vector quantity has no negative.Vector with the same mark the same direction. Vector machine opposite the opposite direction.
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