Physics

a) Find the angular velocity of a wheel that rotates 6 times every 4 seconds.
b) What is the tangential velocity of the outside of the wheel if the radius is 15 cm?

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asked by Martin
  1. a) 6 * 2 π / 4 = ? rad/s

    b) ? rad/s * 15 cm/rad

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    posted by Scott
  2. a. Va = 6rev/4s * 6.28rad/rev = 9.42 rad/s.

    b. Circumference = pi*2r = 3.14*0.30m = 0.942 meters.

    V = 9.42rad/s. * 0.942m/6.28rad = m/s = Linear or Tangential velocity.

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    posted by Henry

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