lecture10_tth_2101_S11

# lecture10_tth_2101_S11 - PHYS 2101 I NSL for Rotations A...

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Unformatted text preview: PHYS 2101 I. NSL for Rotations A. Cross Products B. Torque C. Moment of Inertia II. Rotational Work and Energy Spring 2011 PHYS 2101 CT1: A meter stick can pivot about the dot at the 20 cm mark as shown below. All five forces shown are in the plane of the page and have the same magnitude. Rank the forces according to the magnitude of the torque they produce, from greatest to least 1. 1=3>4>2=5 2. 5>3=4>2>1 3. 3>4=2>5>1 4. 1>3>2=4>5 5. 5>3>4>2>1 6. 3=4>2>1>5 20 40 100 F 1 F 2 F 3 F 4 F 5 Spring 2011 If F 4 acts on the meter stick with a force of 16 N and makes on angle of 65° with the meter stick, what is the magnitude of the torque generated by F 4 about the pivot? PHYS 2101 EX1: Spring 2011 PHYS 2101 EX2: What is the moment of inertia of a barbell that consists of a massless rod of 0.5 m that connects 2 masses, one of 2 kg and the other of 3 kg, about the center of the rod? What is the moment of inertia of a barbell that consists of a massless rod of 0.5 m that connects 2 masses, one of 2 kg and the other of 3 kg, about a point two-thirds of the way down the rod towards the 3-kg mass?...
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## This note was uploaded on 06/20/2011 for the course PHYS 2101 taught by Professor Grouptest during the Spring '07 term at LSU.

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lecture10_tth_2101_S11 - PHYS 2101 I NSL for Rotations A...

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