Thursday, December 31, 2009

VECTOR1

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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