Peoples Physics Concepts

(Marvins-Underground-K-12) #1

9.5. Yo-Yo Type Problems http://www.ck12.org


a. Calculate the final linear velocity of the Yo-Yo when dropped from a height of 0.5m.
b. Calculate the angular acceleration of the Yo-Yo.
c. If the string thickness is not ignored, how would this change your results in parts a. and b.

Answers


  1. a. 200 N team b. 40 Nm c. 0.02 rad/s^2 d. 25 s

  2. a. 2.6 m/s b. 72rad/s^2 c. Effectively makes r bigger, thus acceleration goes up and thus final velocity goes
    up.

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