Can you tell from the coefficient of restitution whether a collision has added k

Question

Can you tell from the coefficient of restitution whether a collision has added kinetic energy to a system, taken some away, or left the system's kinetic energy unchanged?

Choose from:

a) Yes. If the coefficient of restitution is less than one, energy has been changed into kinetic energy. If the coefficient of restitution is greater than one, then kinetic energy has been changed to some other form of energy. If the coefficient of restitution is equal to one, then the initial and final kinetic energies are identical.

b) No. If the coefficient of restitution is different from one, energy has been changed int kinetic energy. If the coefficient of restitution is equal to one, nothing can be said about how the energy changed

a) Yes. If the coefficient of restitution is less than one, energy has been changed into kinetic energy. If the coefficient of restitution is greater than one, then kinetic energy has been changed to some other form of energy. If the coefficient of restitution is equal to one, then the initial and final kinetic energies are identical.

b) No. If the coefficient of restitution is different from one, energy has been changed int kinetic energy. If the coefficient of restitution is equal to one, nothing can be said about how the energy changed

c) No. If the coefficient of restitition is equal to one, then the initial and final kinetic energies are identical. If the coefficient of restition is different from one, nothing can be said about how the energy changed. d) Yes. If the coefficient of restitution is greater than one, energy has been changed into kinetic energy. If the coefficient of restitution is less than one, then kinetic energy has been changed to some other form of energy. If the coefficient of restituion is equal to one, then the initial and final kinetic energies are identical   

Explanation / Answer

d) Yes. If the coefficient of restitution is greater than one, energy has been changed into kinetic energy. If the coefficient of restitution is less than one, then kinetic energy has been changed to some other form of energy. If the coefficient of restituion is equal to one, then the initial and final kinetic energies are identical

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