VECTOR
Quantity:
In the physical world which are measurable are called quantity.such as:mass,length,weight etc.
Classification of quantity:
All physical quantities are divided into two sections:1.scalar quantity
2.vector quantity
Scalar quantity:
The quantities which are expressed only by their magnitude are called scalar quantities.such as:mass, length etc.
Vector quantity:
The quantities which need both magnitude & direction are called vector quantities.such as:weight,force etc.
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