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Interactive Solution 9.63 offers help in modeling this problem. A thin rod has a

ID: 1732154 • Letter: I

Question

Interactive Solution 9.63 offers help in modeling this problem. A thin rod has a length of 0.25 m and rotates in a circle on a frictionless tabletop. The axis is perpendicular to the length of the rod at one of its ends. The rod has an angular velocity of 0.27 rad/s and a moment of inertia of 8.00 x 104 kg m2. A bug standing on the axis decides to crawl out to the other end of the rod. When the bug (mass 4.2 x 10-3 kg) gets where it's going, what is the angular velocity of the rod? 6912 X rad/s Additional Materials

Explanation / Answer

Using conservation of angular momentum

8*10^-4*0.27= (8*10^-4+ 4.2*10^-3* 0.25^2)w'

w'= 0.20 rad/s

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Comment in case any doubt.. good luck

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