Question

which of the following best describes a completely elastic collision?

A. the potential energy (U) of the system before the collision equals U after
B. the kinetic energy (K) of the system before the collision is greater than K after
C. the kinetic energy (K) of the system before the collision equals K after
D. the kinetic energy (K) of the system before the collision is less than K after

Answer 1

@Michele_Laino :)

Answer 2

it is option C, since kinetic energy has to be conserved in elestic collisions

Answer 3

elastic*

Answer 4

ohhh okie! thank you:)

Answer 5

:)