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Inelastic Collision Calculator

Perfectly Inelastic Collision

Formula

m1·v1 + m2·v2 = (m1+m2)·vf, so vf = (m1·v1 + m2·v2)/(m1+m2). Energy lost = KEi - KEf.

Frequently Asked Questions

What is an inelastic collision?
An inelastic collision is one in which momentum is conserved but kinetic energy is not. In a perfectly inelastic collision, the two objects stick together and move as one after the collision.
Where does the lost energy go?
The kinetic energy lost in an inelastic collision is converted into other forms of energy such as heat, sound, and deformation of the objects.

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