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September 20, 2014

September 20, 2014

Posted by **john** on Saturday, November 27, 2010 at 2:15pm.

(a) Determine the angular speed of the wheel. (Assume that there is no slipping of the surfaces in contact during the rolling motion.)

rad/s

(b) Relative to the axle, what is the tangential speed of a point located 0.175 m from the axle?

i got a which was 64.2857 but cant figure out part b

- physics help -
**Henry**, Saturday, November 27, 2010 at 10:36pmC = 6.28*r = 6.28 * 0.28 m = 1.76 m.

C = Circumference.

T = C / V = 1.76 m / 18 m / s = 0.0977s

= time for one rev = period.

Va = C / T = 6.28 * r / T,

Va = (6.28 * 0.175) / 0.0977 = 11.25 m / s.

Alternate Method:

Va = r2 / r1 * 18 = 0.28 / 0.175 * 18 = 11.25 m / s.

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