Question
Determine for each of the following statements whether it is always true or can be false.
In a perfectly inelastic collision, the kinetic energy is conserved.
Kinetic energy is conserved in an elastic collision.
Two objects of different masses but moving at the same velocity have different momentum.
In an elastic collision the momentum is not conserved.
Momentum of a system may be conserved even when mechanical energy is not.
In a perfectly inelastic collision, the kinetic energy is conserved.
Kinetic energy is conserved in an elastic collision.
Two objects of different masses but moving at the same velocity have different momentum.
In an elastic collision the momentum is not conserved.
Momentum of a system may be conserved even when mechanical energy is not.
Answers
no - in an ELASTIC collision KE is conserved
Yes as I just said
Yes m V1 is not m V2
NO -in ANY old collision momentum is conserved
Yes, in in inelastic collision momentum is conserved and energy is not (escapes as heat)
Yes as I just said
Yes m V1 is not m V2
NO -in ANY old collision momentum is conserved
Yes, in in inelastic collision momentum is conserved and energy is not (escapes as heat)
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