21-70. The 1-lb top has a center of gravity at point G. If it spins about its axis of symmetry and precesses about the vertical axis at constant rates of w, = 60 rad/s and w, = 10 rad/s, respectively, determine the steady state angle 0. The radius of gyration of the top about the z axis is k. = 1 in., and about the x and y axes it is k, = k, = 4 in. w, = 10 rad/s w, = 60 rad/s 3 in.
21-70. The 1-lb top has a center of gravity at point G. If it spins about its axis of symmetry and precesses about the vertical axis at constant rates of w, = 60 rad/s and w, = 10 rad/s, respectively, determine the steady state angle 0. The radius of gyration of the top about the z axis is k. = 1 in., and about the x and y axes it is k, = k, = 4 in. w, = 10 rad/s w, = 60 rad/s 3 in.
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