General : Define recovery coefficient E = (V ' 2 -v' 1 1 >) / (V 1 -v 2 ), if only the altitude collision is considered, the relative speed is opposite to each other because there is a relative speed before the collision collision, there is V ' 2 -v ' 1 = - E (V 1 -v 2 ) (1)
Using the definition of zero and relative speed using a degree of magistrate, it is easy to introduce a speed expression after collision in a cuspcle. Finally, it is easy to get a collision speed after the expression in the expression:
Take E = 1 to obtain a speed expression after complete elastic collision.
Using the recovery factor E = (V ' 2 -v' 1 ) / (v 1 < / sub> -v 2 ) and momentum conservation law can derive the speed formula after the elastic collision:
If the recovery coefficient is equal to 1, there is a formula:
Motorcycle Conservation Law Formula:
Putting two formulas to solve the equation:< P>
or, regressing high school physics : Set two object quality
Energy Conservation Law:
Two objects collision speed:
The following formula can be obtained as the following properties:
1. (only the core collision)
2. Total momentum
The type of collision is also: completely elastic collision, non-elastic collision, completely non-elastic collision.