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The velocity of a point in a flow is

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+2 votes
in Fluid Mechanics by (118k points)
The velocity of a point in a flow is

(a) along the streamline

(b) tangent to the streamline

(c) along the pathline

(d) tangent to the pathline

I got this question by my school teacher while I was bunking the class.

I'd like to ask this question from Types of Flow Lines in chapter Kinematics of Flow and Ideal Flow of Fluid Mechanics

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+1 vote
by (362k points)
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Best answer
The correct option is (b) tangent to the streamline

The best explanation: A pathline is the path followed by a particle in motion whereas a streamline is an imaginary line within the flow such that the tangent at any point on it indicates the velocity at that point.

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