Recent content by minhtrietle

  1. M

    How Do You Calculate the Linear Speed of a Rolling Disc?

    I hope this can help you: total K = (1/2)*m*v^2 + (1/2)*I*w^2 actually you don't have to use I = 0.688 which is given if you know the I of the disk is (1/2)*m*r^2. plug all in, find out K = 3/4 * m * v^2 next, the work does on the wheel also equals to the total K above. W = F*s =...
  2. M

    What is the translational speed of a bowling ball encountering a vertical rise?

    i'll give you somemore hints. Helps this can help: K1 + U1 = K2 + U2 where K1 = (1/2)*I*w^2 + (1/2)*m*v^2 the same to K2 for the ball: I = (2/5)*m*r^2 You should choose OGPE at the bottom where the ball first starts (It's just easier ). So U2 = mgh. Use conservation energy to...
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