## Answers

Soln 409 A 1450 4 mis 3mis 30g 4 2 mis 2 209 Vix = 4(osusº = 2.83m's zo Van = Uza =-3 m/s VAY = - 4 sinuso = -2.83 mig key= 2 mis Vay = (stick together er to form a bob) m vist ma vox + M₂ V3x 0 А Conserve H-momentum (m, + m₂ + m₂) Vf se (40 + 20+30 ) Vze = 40x2.83+0+ 30X(-3) Uffe - gonge = 2311) 0.257 mis conserve-y-momentem la 1 m, that Vry = my ry + My Vzy + M₂ Vzy (40+20 +30) Vry 40 (-283) +2012) + o 9o vry = -73.14 - - 0.813 ms Why speed of bobo VF = 5 VF & Vr = 1/(257)2+(-1813)2 4 IVF = 0.85mls direction tano + 0 = for(25) 0-72° Wfy Vise

(B Energy lost ! ) 30gx 32 420x22 AE = 1 m, V2² - (( m 2 2 + 2 m, 1? + 2 muz 2) 3 (40+20 13019 [0-85]?? ₂ [log x 4² + 459(-85)2- ,[9908] = (32.5125-495) x103 J A Eloss - 0.4625 J

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