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Calculate the velocity of the wheel if the angular speed is 25 rad/s and radius is 10 m.(a) 250 m/s(b) 260 m/s(c) 270 m/s(d) 240 m/sI got this question in a national level competition.I want to ask this question from DC Motors topic in portion Characteristics of DC & AC Motors of Electric Drives

Answer»

Correct choice is (a) 250 m/s

For explanation I WOULD say: The velocity of the wheel can be calculated using the relation V=ω×r. The velocity is the vector PRODUCT of angular speed and RADIUS. V=Ω×r = 25×10 = 250 m/s.



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