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The figure shows a top-down view of a 0.80 m long uniform rod (I=(1/12)ML2) with a total mass of 1.40 kg that is bolted down to a table through its center. A 10.0 g bullet shoots through the rod 0.30 m from its center, approaching at 250 m/s and exiting at 140 m/s. The rod is initially at rest, and is free to rotate about its center, and lToses negligible mass during the collision. A) What is the angular velocity of the rod immediately after the collision? B) After the collision, the bolt through the center of the rod causes a constant frictional torque of 0.050 Nm. How many revolutions will the rod make before it comes to rest due to this friction? (If you couldn't solve part A, you may assume wo=5 rad/s so you can still solve this part.)

The figure shows a top-down view of a 0.80 m long uniform rod (I=(1/12)ML2) with a total mass of 1.40 kg that is bolted down to a table through its center. A 10.0 g bullet shoots through the rod 0.30 m from its center, approaching at 250 m/s and exiting at 140 m/s. The rod is initially at rest, and is free to rotate about its center, and lToses negligible mass during the collision. A) What is the angular velocity of the rod immediately after the collision? B) After the collision, the bolt through the center of the rod causes a constant frictional torque of 0.050 Nm. How many revolutions will the rod make before it comes to rest due to this friction? (If you couldn't solve part A, you may assume wo=5 rad/s so you can still solve this part.)

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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The figure shows a top-down view of a 0.80 m long uniform rod (I=(1/12)ML2) with a total mass of 1.40 kg that is bolted down to a table through its center. A 10.0 g bullet shoots through the rod 0.30 m from its center, approaching at 250 m/s and exiting at 140 m/s. The rod is initially at rest, and is free to rotate about its center, and loses negligible mass during the collision. A) What is the angular velocity of the rod immediately after the collision? B) After the collision, the bolt through the center of the rod causes a constant frictional torque of 0.050 Nm. How many revolutions will the rod make before it comes to rest due to this friction? (If you couldn't solve part A, you may assume wo=5 rad/s so you can still solve this part.) 250 m/s 140 m/s Pivot
Transcribed Image Text:The figure shows a top-down view of a 0.80 m long uniform rod (I=(1/12)ML2) with a total mass of 1.40 kg that is bolted down to a table through its center. A 10.0 g bullet shoots through the rod 0.30 m from its center, approaching at 250 m/s and exiting at 140 m/s. The rod is initially at rest, and is free to rotate about its center, and loses negligible mass during the collision. A) What is the angular velocity of the rod immediately after the collision? B) After the collision, the bolt through the center of the rod causes a constant frictional torque of 0.050 Nm. How many revolutions will the rod make before it comes to rest due to this friction? (If you couldn't solve part A, you may assume wo=5 rad/s so you can still solve this part.) 250 m/s 140 m/s Pivot
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