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Mare: PHYS September 13, 2002 Group Project 3.1 PENDULUMS, INTERACTIONS, AND CONSERVATION Goal: «To apply shar we have leaped about momennun and energy conservation to explain the behavior of interacting pomdoloms. © To gain some capericoce with comples problem solving. © To play with a fun coy. Instroctions: « PLEASE FORM GROUPS WITH FOUR NEMGHBORS AND WORK ON THIS TOGETHER. * FOLLOW THE INSTRUCTIONS ON THE SHEET. PLL WALE ARCHIND TG HELP AS NECESSARY. « DRAW DIAGRAMS, AND SHOW TOUR REASONING AS WELL AS TOUR CALCULATIONS. qth What's going on with interacting pandadums? In Group Project 4.1, we determined that the speed of a penduhom at the bottom of its swing is va fxexBh where Akt = change in height and asanming that the pendulum was initially at rest at its initial height ay Consider one pendulutn of mass Mf deopped from height 7. Draw evo skerches: (1) he pendulum aa the wp of is awing, before being released, and (2) the pendulum at the bottom of is swing. Write down suergy equations for sketch (1} and sketch (2). > Ktus Mal I” a a ele by Use your resuk from Group Project 4.1 ta calculate the magninde of ibe momentum ff of the pendulum in sketch (Uj and sketch (2). Also, what is the direction of (remember that fF is 2 vector, so itpecds both magnitude and dizection)? a 7. = * . Ao myr O 2 > mv, > milage fe the ‘ f . : right o DRAW a vector for fh, (he momentum in sketch (1) and fia (tse momentum in sketch (2)}-on your skembes. a Ig momeniom conserved? In other words, is the inemeniom in sketch (1) eqeal te the meormentm in sketch (2)? Praestrorstvme My yay! ff a0 RAD. Thee’s an laflrn| acters am oe chet 
