20. The acceleration is constant so that use of Table 2-1 (for both the xand ymotions) is permitted. Where units are not shown, SI units are to be understood. Collision between particlesAand Brequires two things. First, the ymotion of Bmust satisfy (using Eq. 2-15and noting that θis measured from the yaxis) 2221130 m(0.40 m/s ) cos.yyattªº=¡=¬¼Second, the xmotions of Aand Bmust coincide: 2(3.0 m/s)(0.40 m/s ) sin.xvta ttt=¡=We eliminate a factor of tin the last relationship and formally solve for time: 2(3.0m/s).(0.40 m/s ) sinxvta==This is then plugged into the previous equation to produce
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This note was uploaded on 05/17/2011 for the course PHY 2049 taught by Professor Any during the Spring '08 term at University of Florida.