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Tangential speed of the shaft is______

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+1 vote
in Fluid Mechanics by (118k points)
Tangential speed of the shaft is______

(a) 2πN/1000

(b) πDN/1000

(c) πDN/60

(d) 2πN/60

I got this question in semester exam.

This key question is from Power Absorbed in Viscous Flow in section Viscous Flow & Turbulent Flow of Fluid Mechanics

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Best answer
The correct option is (c) πDN/60

Best explanation: Tangential speed is defined as the distance travelled per unit time. It is a linear speed of something that moves around a circular path. Example of tangential speed is a point on the edge of a merry-go-round. The merry-go-round travels a greater distance in one complete rotation than the point near the centre.

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