1. Is momentum conserved in elastic collision? 2. Is kinetic energy conserved in
ID: 1365851 • Letter: 1
Question
1. Is momentum conserved in elastic collision?
2. Is kinetic energy conserved in elastic collision?
3. Is momentum conserved in elastic collision?
4. Is kinetic energy conserved in elastic collision?
5. What is the final speed of cart 1 in the elastic collision? Why would you predict this result?
6. In collisions where the kinetic energy is not conserved it is converted into other forms of energy. What kinds of energy might these be?
7. If the air track is not perfectly horizontal, will this introduce any error into the experiment? Explain.
Explanation / Answer
(1) Yes, the momentum as well as kinetic energy is conserved in elastic collision
(2) Yes, kinetic energy conserved in elastic collison, but not in inelstic collison.
(3) Yes, momentum is conserved
(4) Kinetic energy is conserved in elastic collison only, Kinetic energy is not conserved in inelastic collision
(5) By applying the law of conservation of linear momentum, we can predict the speed of object.
(6) In the case of inelastic collison, the kinetic enrgy is not conserved. During the collison, some of its energy is converted into other forms like heat..
(7) Yes, because the vertical component of air frictional force effects the gravity.
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