1. What happens to the objects, the momentum and the mechanical energy in an ela

Question

1. What happens to the objects, the momentum and the mechanical energy in an elastic collision? What happens to the objects, the momentum and the mechanical energy in a completely inelastic collision?

2. In each trial, what happens to the momentum (compare before and after)? Does each of your results confirm the Law of Conservation of Momentum?   Explain how you arrived at your conclusions. Discuss one significant source of error in the experiment.  

M1 (KG) M2(KG) Vi(m/s) Vf(m/s) Pi (kg*m/s) Pf(kg*m/s) KEi (J) KEf (J) KE lost (J) 0.6 0.5 0.5 0.23 0.3 0.24 0.06 0.03 0.04 0.6 1 0.55 0.18 0.3 0.28 0.09 0.02 0.06 0.6 1.5 0.51 0.2 0.3 0.33 0.07 0.03 0.05

Explanation / Answer

1) in an elastic collision momentum and mechanicla energy is conserved

in a inelastic collision momentum only conserved but not the mechanical energy

2) conservation of momentum m1u1+m2u2=m1v1+m2v2

before and after momentum are equal that is they are conserved with each other

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