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What Are Vector and Scalar Quantities? Vector and scalar quantities are fundamental concepts in Maths and Physics. A scalar quantity has only magnitude, such as mass, temperature, and time, while a vector quantity has both magnitude and direction, like displacement, velocity, and force. The vector quantities follow the laws of vector addition. Displacement, Velocity, and Work some of the vector quantities. How to denote a vector quantity ? In physics and mathematics, we denote a vector quantity by an arrow above the variable defining it. For example, we write the velocity vector with the '→' symbol over the letter v. Vector , in physics, a quantity that has both magnitude and direction. It is typically represented by an arrow whose direction is the same as that of the quantity and whose length is proportional to the quantity ’s magnitude. Although a vector has magnitude and direction, it does not have position.
