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6.4) Determine the unit vector normal to the streamline at a point where V = 3i...

6.4) Determine the unit vector normal to the streamline at a point where V = 3i + 4j in a plane flow.

a) 0.6 i + 0.8 j

b) -0.6 i + 0.8 j

c) 0.8 i + 0.6 j

d) 0.8 i - 0.6 j

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