A vector quantity is a quantity to determine the size and direction of the meaning. Examples of vector quantities, including strength, displacement, velocity, acceleration, due to a vector quantity has both magnitude 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.Can be represented by arrows directed above the letters, aV and use arrows instead of the size and the direction. Vector marked as in the same direction. Vector marked with opposite direction on the contrary.
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