Perfectly Inelastic Collision In One Dimension

When the two colliding bodies stick together and move as a single body with a common velocity after the collision, then the collision is perfectly inelastic.

Let we consider perfectly inelastic collision between two bodies of masses m₁ and m₂. The body of mass m₂ happens to the initially at rest (u₂ = 0). After the collision, the two bodies move together with common velocity v.

Perfectly Inelastic Collision In One Dimension

Therefore, Change in Kinetic Energy (∆K) is positive.

Thus, Kinetic Energy is lost mainly in the form of light, sound and heat.

Inelastic Collision In Two Dimension

When two bodies travelling initially along the same Straight Line collide involving some loss of kinetic energy and move after collision along different directions in a plane.

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Inelastic Collision In Two Dimension

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