P=mv
The principle of conservation of momentum states that the momentum of a system before a collision is equal to the momentum of a system after the collision. In other words:
m1u1 + m2u2 = m1v1 + m2v2
In other circumstances, the colliding objects may coalesce (join together, for example a train and a carriage).
Conservation of momentum still applies, but in this manner:
m1u1 + m2u2 = (m1 + m2)v
There are two types of collisions:
m1u1 + m2u2 = m1v1 + m2v2
In other circumstances, the colliding objects may coalesce (join together, for example a train and a carriage).
Conservation of momentum still applies, but in this manner:
m1u1 + m2u2 = (m1 + m2)v
There are two types of collisions:
- Elastic collisions are collisions in which momentum as well as energy are conserved.
- Inelastic collisions are collisions in which momentum is also conserved, but energy is dissipated in the form of heat, sound, light, friction, etc.
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