**Scalar quantities: **Scalar quantities are those quantities which have only magnitude but no

direction. Length, mass, time, distance, volume, density, temperature, speed, work, and pressure are few examples of scalar quantities. These can be added, subtracted, multiplied, and divided according to the simple rule of algebra.

**Vector quantities:** Vector quantities are those quantities which have both magnitudes as well as

direction. Force, displacement, velocity, acceleration, momentum, impulse, and weight are few examples of vector quantities. These can be added, subtracted, or multiplied according to the rule of vector

algebra.

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