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183_notes:examples:a_meter_stick_on_the_ice [2014/11/16 21:38] – pwirving | 183_notes:examples:a_meter_stick_on_the_ice [2014/11/20 15:59] – pwirving | ||
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=== Facts === | === Facts === | ||
+ | Mass of meter stick 300g | ||
+ | Pull at end of meter stick at right angles to the stick: 6N | ||
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=== Lacking === | === Lacking === | ||
+ | Rate of change of the center-of-mass speed $v_{CM}$? | ||
+ | Rate of change of the angular speed $\omega$? | ||
=== Approximations & Assumptions === | === Approximations & Assumptions === | ||
+ | No friction due to ice | ||
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Surroundings: | Surroundings: | ||
- | {{course_planning: | + | {{183_projects:mi3e_11-050.jpg?300}} |
+ | |||
+ | $\frac{d\vec{P}}{dt}$ = $\vec{F}_{net}$ | ||
+ | |||
+ | $\frac{d\vec{L}_{rot}}{dt}$ = $\vec{\tau}_{net,CM}$ | ||
- | $d\vec{P}/ | + | $\tau = r_{A}Fsin \theta$ |