Unformatted text preview: originally spinning about the z axis at aconstant rate z , when = 90°, determine the rate of spin if all the panels are raised and reach the upward position, = 0°, at the same instsnt. Given: m ss 125 kg = a 0.2 m = z 0.5 rad s = I z 0.940 kg m 2 ⋅ = b 0.75 m = m sp 20 kg = c 0.2 m = Solution: Guess z2 1 rad s = Given I z 4 m sp 12 b 2 c 2 + ( ) m sp a b 2 + ⎛ ⎝ ⎞ ⎠ 2 + ⎡ ⎢ ⎣ ⎤ ⎥ ⎦ + ⎡ ⎢ ⎣ ⎤ ⎥ ⎦ z I z 4 m sp 12 c 2 m sp a 2 + ⎛ ⎝ ⎞ ⎠ + ⎡ ⎣ ⎤ ⎦ z2 = z2 Find z2 ( ) = z2 3.56 rad s = 655...
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This note was uploaded on 08/16/2011 for the course EGN 3321 taught by Professor Christianfeldt during the Spring '08 term at University of Central Florida.
 Spring '08
 ChristianFeldt
 Dynamics, Moment Of Inertia

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