The 8-lb sphere and 6-lb block (shown in section) are secured to the arm of negligible mass which rotates in the vertical plane about ahorizontal axis at O. The 4-lb plug is released from rest at A and falls into the recess in the block when the arm has reached thehorizontal position. An instant before engagement, the arm has an angular velocity wo = 2.2 rad/s. Determine the angular velocity w(positive if counterclockwise, negative if clockwise) of the arm immediately after the plug has wedged itself in the block.8 lbAnswer: w=12"i10020"4 lbA23"6 lbrad/s

The velocity just before the time when the plug just before the engagement can be found out by…

Answered: 8 lb 12" @o 20" 4 lb I i I I 23" 6 lb

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Advanced Physics

8 lb 12" @o 20" 4 lb I i I I 23" 6 lb

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Question

The 8-lb sphere and 6-lb block (shown in section) are secured to the arm of negligible mass which rotates in the vertical plane about a
horizontal axis at O. The 4-lb plug is released from rest at A and falls into the recess in the block when the arm has reached the
horizontal position. An instant before engagement, the arm has an angular velocity wo = 2.2 rad/s. Determine the angular velocity w
(positive if counterclockwise, negative if clockwise) of the arm immediately after the plug has wedged itself in the block.
8 lb
Answer: w=
12"
i
100
20"
4 lb
A
23"
6 lb
rad/s

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