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# Is pressure a scalar or a vector quantity?

Asked by saumya 17th October 2013, 8:25 PM

Pressure is the force acting in all directions on an area while force is a push or pull in a direction. The term pressure is applicable for bulk materials (like water) where individual particles are considered as soft.  Pressure does not have any unique direction.

Example:

When a bomb blasts, it effects in all directions in air whereas if a running car hits, it effects in the specific direction only. A parameter effecting in all directions uniformly is considered as if it is a scalar. The pressure acts to all the directions uniformly.

The formula for pressure is,

P= F/A , is only the magnitude relation, not direction.

Pressure is the ratio of force and vector area..

A vector quantity can be defined by giving both magnitude and direction.

Pressure has only magnitude but no specific direction as it acts in all directions.

So, pressure is a scalar.

Answered by Expert 17th October 2013, 10:39 PM
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