Unformatted text preview: (n The rectangular steel plate of mass 12 kg is
welded to the shaft with its plane tilted 15° from
the plane (xy) normal to the shaft axis. The shaft
and plate are rotating about the ﬁxed zaxis at
the rate N = 300 rev/ min. Determine the angu
lar momentum Ho of the plate about the given
axes and ﬁnd its kinetic energy TV The solid circular disk of mass m = 2 kg and
radius r = 100 mm rolls in a circle of radius 1) =
200 mm on the horizontal plane without slipping.
If the center line OC of the axle of the wheel ro
tates about the zaxis with an angular velocity
u) = 411 rad/s, determine the expression for the
angular momentum of the disk with respect to
the ﬁxed point 0. Also compute the kinetic en , ergy of the wheel. E102
H.W. 8 C3) The uniform slender bar of length l and mass m
is welded to the shaft, which rotates in hearings
A and B with a constant angular velocity a). De
termine the expression for the force supported by
the bearing at B as a function of 0‘ Consider only
the force due to the dynamic imbalance and as sume that the bearings can support radial forces
only. m The partial ring has a mass p per unit length of
rim and is welded to the shaft at A. Determine
the bending moment M in the ring at A due to
the rotation of the ring for an angular velocity to. The uniform square plate of mass m is welded at
0 to the end of the shaft which rotates about the
vertical zaxis with a constant angular velocity to.
Determine the moment applied to the plate by
the weld due only to the rotation. ...
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 Winter '08
 Eke

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