The control moment gyro (CMG) shown in the two views below consists of a flywheel (centered at G) that rotates w.r.t. the base (A to
G
) that rotates w.r.t the ground at point A. If the angular velocity of the flywheel (w.r.t. the base) is
+8ra(d)/(s)
in the z direction shown and the angular velocity of the base (w.r.t. the ground) is a constant
+7ra(d)/(s)
in the
y
direction shown find the kinetic energy of the flywheel at the instant shown. Assumed the flywheel is a thin circular disk with a radius of 0.9 m and a mass of 4 kg . Answer in J . Side ered 131.22 רswer 71.69 margin of error + -
-2%
Correct anwer is 71.69, try getting to that answer