Scalar Vector Motion Equilibrium

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What do you mean by equilibrium?
Equilibrium is a state of rest of a body. Equilibrium equations also include the body moving with zero acceleration (uniform velocity) along a straight line.

What is motion? When it will occur?
Motion is change of position of a body with respect to time. To have a motion in any direction, the body should have an unbalanced force in the same direction.

What is scalar? Give some examples
Scalar is a physical quantity that contains only magnitude information. E.g. Mass, Time

What is vector? Give some examples
Vector is a physical quantity that contains both magnitude and direction information.
E.g. Weight, Distance

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