Chapter_11 - Chapter 11: Angular Momentum Reading...

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Vector- or Cross-product Torque Angular momentum Angular momentum is conserved!! Chapter 11: Angular Momentum Reading assignment: Chapter 11.1 to 11.4 Homework : QQ3, QQ4, AE8, OQ5, 1, 3, 5, 10, 11, 12, 25, 26, 31, 34, 56 Due:Tuesday, April 5 Midterm 2 coming up on Wednesday, March 30; (chapter 1-10) Practice test are posted Extended office hours, Tuesday 1-3; Wednesday 1-3
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Torque and the vector product Thus far: Torque Φ = sin F r τ Torque is the vector product between the force vector F and vector r F r × = τ ισ περπενδιχυλαρ το ρ ανδ Φ τ ηασ μαγ νιτυδε τ = ρ •Φ•σινΦ
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Torque and the vector product Definition of vector product: B A C × = - The vector product of vectors A and B is the vector C . - C is perpendicular to A and B - The magnitude of is C = A·B·sin φ φ
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Torque and the vector product B A C × = Use the right hand rule to figure out the direction of C . - Thumb is C (or torque τ, angular velosity ϖ , angular momentum L ) - Index finger is A (or radius r ) - Middle finger is B (or force F ) φ
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Torque and the vector product B A C × = Rules for the vector product.
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Chapter_11 - Chapter 11: Angular Momentum Reading...

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