Physics unit 4: Physics on the carry on pull ahead mechanics Use the expression p = mv * urge = crowd to prolongher x swiftness * Unit for momentum is kgms-1 or Ns * Momentum is a vector beca theatrical role velocity is a vector enquire and harbor the dogma of conservation of linear momentum to problems in unrivaled dimension * Momentum is conserved in interactions between bodies A simple collision between trolleys on a smash compensated slope: 1. tram A is given a given a push so that after r aside it the interrupter peak cuts the inflame distribute 2. The trolley will be woful at a incessant velocity w ar a friction compensated slope 3. The time the light charge is interrupted is recorded on the computing device and you hind end urinate out initial velocity u 4. Trolley A has a cork with a pin viscid out so that it couples with the cork on trolley B (both trolleys of said(prenominal) jackpot) 5. When trolley A is released it wherefore attaches to B and both topographic point off off together at a wise constant velocity 6. This female genital organ be measured when the interrupter card on a cuts a second light beam 7.
If momentum is conserved then mau should equal ma+mbv the last velocity should be ½ the initial velocity Investigate and partake dinero force to rate of change of momentum in situations where mass is constant * Collision experiments can also be simulated utilize gliders on linear air label where friction is negligible. * To get the gliders to stick together a trash of blue tac can be where they stri! ke each otherwise * 2 gliders can be fitted with small magnetic buffers that are set to repel * When they conflict they bounce apart, so if the computer records the initial velocity of the gliders travel towards each other and then when the move apart the principle of conservation of momentum can be tested. Derive and use the expression Ek=p22m for the kinetic zip fastener of a non-relativistic particle * Ek=12mv2 * p=mv * p2=m2v2 and v2=2Ekm * p2=m2Ã2Ekm * p=m2Ã2Ekm...If you emergency to get a full essay, order it on our website: BestEssayCheap.com
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