0
0.5
1
2
Answer is Wrong!
Answer is Right!
The correct answer is C. 1.
The coefficient of restitution (COR) is a dimensionless number that measures the amount of energy that is lost in an elastic collision. A perfectly elastic collision is one in which there is no loss of energy,
so the COR is 1.A perfectly inelastic collision is one in which all
of the energy is lost, so the COR is 0.A real-world example of a perfectly elastic collision is a billiard ball hitting another billiard ball. The energy of the collision is transferred from one ball to the other, and there is no loss of energy.
A real-world example of a perfectly inelastic collision is a ball of clay hitting a wall. The clay sticks to the wall, and all of the energy of the collision is lost.