In Fig. 2, a thin uniform rod (mass 3.0 kg , length 4.0 m ) rotates freely about a horizontal axis A that is perpendicular to the rod and passes…

In Fig. 2, a thin uniform rod (mass 3.0 kg , length 4.0 m )

rotates freely about a horizontal axis A that is perpendicular to the

rod and passes through a point at distance  d=1.0  m from the

end of the rod. The kinetic energy of the rod as it passes through the

vertical position is 20 J. (a) What is the rotational inertia of the rod

about axis A ? (b) What is the (linear) speed of the end  Bof the rod

as the rod passes through the vertical position? (c) At what angle Θ

will the rod momentarily stop in its upward swing?

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