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1.20 to 1.24 Plenary quick+easy questions and answers 29 September 2010 13:54
> 1.20 to 1.24 Plenary extension question 13 March 2012 15:20 Physics for You p.147 Q6 [cid:image001.png@01CD05AF.277754C0] 6. Consider initial momentum Man p = m x v p = 80 x 0 p = 0kgm/s Bullet p = m x v p = 0.02 x 400 p = 8kgm/s total initial momentum = 8+0 = 8kgm/s Principle of Conservation of Momentum tells us: total initial momentum = total final momentum Σpi = Σpf so total final momentum = 8kgm/s Consider final momentum Σpf = pbullet + pman 8 = 0 + pman pman = 8kgm/s Man p = m x v 8 = 80 x v v = 0.1m/s
· Considerably less dramatic than Hollywood! 
1.20 to 1.24 Plenary quick+easy questions and answers 29 September 2010 13:54
> 1.20 to 1.24 Plenary extension question 13 March 2012 15:20 Physics for You p.147 Q6 [cid:image001.png@01CD05AF.277754C0] 6. Consider initial momentum Man p = m x v p = 80 x 0 p = 0kgm/s Bullet p = m x v p = 0.02 x 400 p = 8kgm/s total initial momentum = 8+0 = 8kgm/s Principle of Conservation of Momentum tells us: total initial momentum = total final momentum Σpi = Σpf so total final momentum = 8kgm/s Consider final momentum Σpf = pbullet + pman 8 = 0 + pman pman = 8kgm/s Man p = m x v 8 = 80 x v v = 0.1m/s
· Considerably less dramatic than Hollywood!
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