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# Disk Angular Velocity

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ans. A)Wbd = 4.38 rad/sec curving down;
Vd = .306 m/sec up.
B) Wbd = 0; Vd = 1.05 m/sec down.
C) Wbd = 4.38 rad/sec curving up; Vd = .306 m/sec down.

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The solution is provided step-by-step to determine the disk angular velocity and a diagram is attached.

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Because, vb = r*w
r = 0.07 m
=&gt; vb = 15*0.07 = 1.05 m/s

a.) For Q(read as theta) = 0:
vb = 1.05 (horizontal -&gt;)
direction of vb/d: Because, DB makes an angle ...

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• MSc , Pune University, India
• PhD (IP), Pune University, India
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