NDA 2016 Physics question

Physics Motion in a Plane NDA 2016

Pressure is a scalar quantity because

(A)it is the ratio of force to area and both force and area are vectors
(B)it is the ratio of magnitude of force to area
(C)it is the ratio of component of force (normal to area) to areaCorrect
(D)none of the above

Answer: (C)

Solution

Force is a vector, but pressure uses only the component of the force perpendicular to the surface: . At a point in a fluid this value is the same whatever the orientation of the

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Question ID VK-030567