Plastic impact - Coefficient of restitution is zero

Q.  If coefficient of restitution is zero during plastic impact, then ___________
- Published on 18 Sep 15

a. kinetic energy is conserved
b. momentum energy is conserved
c. bodies move away after impact
d. all of the above

ANSWER: momentum energy is conserved

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    Discussion

  • Sravanthi   -Posted on 16 Dec 15
    - The range for coefficient of restitution lies is between 0 ≤ e ≤ .

    Coefficient of restitution is defined as the ratio of impulse during restoration period to impulse during deformation period

    - Plastic impact: When a body undergoes plastic impact, it does not restore to its original position but momentum is conserved. Due to impact, the body or object has major loss of kinetic energy. In this case, coefficient of restitution is zero. The objects after plastic impact move with common velocity.

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