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Law of conservation of momentum investigation
How momentum is conserved in collision
Law of conservation of momentum investigation
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Conservation of Momentum
Purpose: To show that momentum is conserved in a closed system by illustrating the conservation of momentum in an elastic collision and an inelastic collision.
Method: If momentum is conserved in a closed system, the total momentum of the system before collision should equal the total momentum of the system after the collision. Strobe photos will be used in the calculations that will prove that momentum is conserved.
1.) Elastic collision: A strobe photo will be used that shows a large glider smashing into a smaller glider which is initially at rest. This will cause the smaller glider to move and the large glider will continue to move also.
2.) Inelastic collision: A strobe photo will be used that shows a glider smashing into another glider which is initially at rest. When they collide the two gliders will stick together and will move.
-The masses, distances and times will be measured in order to calculate the momentums of the systems before and after collision occurs.
Data:
V = d/t P = m x v
1.) Elastic collision:
When Mass Distance Time Velocity Momentum
Glider A Before Collision .31215 kg .009m .6s .015 m/s .00468 Kg m/s
Glider B Before Collision .15580 kg — — 0 m/s 0 Kg m/s
Glider A After Collision .31215 kg .005m 1.0s .005 m/s .00156 Kg m/s
Glider B After Collision .15580 kg .011m .6s .018 m/s .00280 Kg m/s
2.) Inelastic collision:
When Mass Distance Time Velocity Momentum
Glider C Before Collision .3105 kg .016m 1.0s .016 m/s .004968 Kg m/s
Collision and its Implications." Defense Technologies Information Center. 25 Jan 1994. http://www.dtic.mil/cgi-bin/GetTRDoc?Location=U2&doc=GetTRDoc.pdf&AD=ADA274926 (accessed Mar 23, 2012).
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