Chapter 11, Problem 061 The uniform rod (length 0.592 m) in the figure rotates i

Question

Chapter 11, Problem 061 The uniform rod (length 0.592 m) in the figure rotates in the plane of the figure about an axis through one end, with a rotational inertia of 0.211 kg m2. As the rod swings through its lowest position, it collides with a 0.215 kg putty wad that sticks to the end of the rod. If the rod's angular speed just before the collision is 1.37 rad/s, what is the angular speed of the rod-putty system immediately after the collision? Rotation axis Rod Number the tolerance is +/-2% Click if you would like to Show Work for this question: Units Open Show Work

Explanation / Answer

conserving angular momentum about the poit of rotation

initial angular momentum=0.211*1.37

final angular momentum=(0.211+0.075)*w

conserving

we got

w=1.01 rad/s

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