Explain the following with the help of example
• Scalar Quantity
• Vector Quantity
• Addition of vector
• Subtraction of vector
• Vector representation
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A scalar quantity is defined as the physical quantity that has only magnitude, for example, mass and electric charge. On the other hand, a vector quantity is defined as the physical quantity that has both, magnitude as well as direction like force and weight.
Although vectors and scalars represent different types of physical quantities, it is sometimes necessary for them to interact. While adding a scalar to a vector is impossible because of their different dimensions in space, it is possible to multiply a vector by a scalar.
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