A sphere of radius 20 cm and mass 1.8 kg starts fr...

Answers ( 1 )

  1. enni salonen
    enni salonen
    A) mgH=(1/2)mv2      H=y   y=hsin
        (1.8)(9.8)(10sin(30)) =(.5)(1.8)v2
    88.2= .9v2
        v2=98
        v=9.90 m/s
    B)Isphere=(2/5)mr2
    mgH=(1/2)mv2 +(2/5)Iw      *w=omega
        gH=(1/2)v2 +(2/5)v2
       9.8(5)=.9v2
    v2=54.44
        v=7.38 rad/sec
    C)tran./rot.
        9.90/7.38 = 1.34

    *im not sure if this is right but this is how i would do it



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