1.22 Tuesday, July 06, 2010 3:04 PM
· 1.22 use the conservation of momentum to calculate the mass, velocity or momentum of objects Momentum conserved in collisions
· http://www.youtube.com/watch?v=b6QzJSUKzQM
· and http://www.walter-fendt.de/ph14e/collision.htm
> >
Momentum conserved in explosions
> Example - Pearson, p.41 [cid:image001.jpg@01CD076A.F1E42140] Consider final momentum Truck, plasticine and pellet p = m x v p = (0.1+0.002) x 0.8 p = 0.0816kgm/s total final momentum = pf = 0.0816kgm/s Principle of Conservation of Momentum tells us: total initial momentum = total final momentum Σpi = Σpf so total initial momentum = pi = 0.0816kgm/s Consider initial momentum Truck and plasticine p = m x v p = 0.1 x 0 p = 0kgm/s Pellet p = m x v 0.0816 = 0.002 x v v = 40.8m/s 1.22 animation 14 March 2012 15:49 Website: http://www.walter-fendt.de/ph14e/collision.htm Embed code for your blog: Example: http://maddog11physics.posterous.com/conservation-of-momentum-animation# 1.22 Plenary questions 13 March 2012 15:20 Physics for You p.147 Q1g+h, 3+4 1 [cid:image002.jpg@01CD076A.F1E42140] [cid:image003.jpg@01CD076A.F1E42140] [cid:image004.jpg@01CD076A.F1E42140] 
· 1.22 use the conservation of momentum to calculate the mass, velocity or momentum of objects Momentum conserved in collisions
· http://www.youtube.com/watch?v=b6QzJSUKzQM
· and http://www.walter-fendt.de/ph14e/collision.htm
> >
Momentum conserved in explosions
> Example - Pearson, p.41 [cid:image001.jpg@01CD076A.F1E42140] Consider final momentum Truck, plasticine and pellet p = m x v p = (0.1+0.002) x 0.8 p = 0.0816kgm/s total final momentum = pf = 0.0816kgm/s Principle of Conservation of Momentum tells us: total initial momentum = total final momentum Σpi = Σpf so total initial momentum = pi = 0.0816kgm/s Consider initial momentum Truck and plasticine p = m x v p = 0.1 x 0 p = 0kgm/s Pellet p = m x v 0.0816 = 0.002 x v v = 40.8m/s 1.22 animation 14 March 2012 15:49 Website: http://www.walter-fendt.de/ph14e/collision.htm Embed code for your blog: Example: http://maddog11physics.posterous.com/conservation-of-momentum-animation# 1.22 Plenary questions 13 March 2012 15:20 Physics for You p.147 Q1g+h, 3+4 1 [cid:image002.jpg@01CD076A.F1E42140] [cid:image003.jpg@01CD076A.F1E42140] [cid:image004.jpg@01CD076A.F1E42140]
No comments:
Post a Comment