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x, COy, and ax are nonzero. Assuming that the origin of this body-axis system is fixed, find the location (x, y, z) of a point in the body whose absolute acceleration is a == axi + ayj + azk. 7-8. Show that, at a given instant, it is impossible for only one point of a general rigid body to have zero velocity; but there is only one point, in general, which has zero acceleration. 7-9. A certain rigid body has the following inertia matrix:
BASIC CONCEPTS AND KINEMATICS
450 [I] == - 60 [ 100
-60 100] 500 7 lb sec2 ft 7 550
Solve for the principal moments of inertia at the same reference point. Find the rotation matrix such that a minimum rotation angle