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

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

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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
Transcribed Image Text: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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