Chapter 9261*P9.27(a)Using conservation of momentum, pp∑∑=chafterbefore, gives40 10 3040501030.....++=++−afbgbgbgbgbgkgkgm skgm skgm sv.Therefore, v=+224.m s , or .m s toward the right .(b)No . For example, if the 10-kg and 3.0-kg mass were to stick together first, they wouldmove with a speed given by solving13103 03 04 01kgkgm skgm sbgbgbgv−..., or v1138. ms.Then when this 13 kg combined mass collides with the 4.0 kg mass, we have17131 384 05 0kgkgm skgm sbgbgbgv..., and vmsjust as in part (a). Coupling order makes no difference.Section 9.4Two-Dimensional CollisionsP9.28(a)First, we conserve momentum for the system of two football players in the xdirection (thedirection of travel of the fullback).90 05 000185coskgm skgbgbg+=Vθwhere is the angle between the direction of the final velocity
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This note was uploaded on 12/14/2011 for the course PHY 203 taught by Professor Staff during the Fall '11 term at Indiana State University .