MECHANICAL ENERGY
CONTENT
- The Principle of Conservation of Linear Momentum
- Types of Collisions
The Principle of Conservation of Linear Momentum
In a closed system of colliding bodies, the total momentum after the collision is equal to the total momentum before the collision provided there is no net external force acting on the system.
Case 1: Consider two bodies A and B of masses m1 and m2 moving in the same direction with velocities u1 and u2 respectively. After collision their velocities were V1 and V2 as shown below.
Applying the principle of conservation of linear momentum,
\(M_1 U_1 + M_2 U_2 = M_1 V_1 + M_2 V_2\)
Case 2: Consider two bodies A and B of masses m1 and m2 moving towards each other with velocities u1 and u2 respectively. After collision there velocities were V1 and V2 .
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