March 28, 2017

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A uniform solid cylinder of mass M = 2 kg is rolling without slipping along a horizontal surface. The velocity of its center of mass is 27.6 m/s. Calculate its energy.

I got 761.76 Joules but I think it's wrong.

  • Physics - ,

    Did you add the translational kinetic energy (1/2) M V^2 and the rotational kinetic energy (1/2) I w^2?

    I = (1/2)MR^2 and w = V/R, so
    Total KE = (3/4) M V^2

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