# Problem: You know that a collision must be "elastic" if:a) The colliding objects stick togetherb) The sum of the final kinetic energies equals the sum of the initial kinetic energiesc) There is no change in the internal energies of the objects (thermal energy, vibrational energy, etc.)d) The colliding objects are stretchy or squishye) The momentum of the two-object system doesn't changeWhich one is true/false

###### FREE Expert Solution

An elastic collision is defined as one in which kinetic energy is conserved in the collision. That is, there is no loss of kinetic energy in the collision.

98% (321 ratings) ###### Problem Details

You know that a collision must be "elastic" if:

a) The colliding objects stick together

b) The sum of the final kinetic energies equals the sum of the initial kinetic energies

c) There is no change in the internal energies of the objects (thermal energy, vibrational energy, etc.)

d) The colliding objects are stretchy or squishy

e) The momentum of the two-object system doesn't change

Which one is true/false