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SS2: PHYSICS - 1ST TERM

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  1. Scalars & Vectors | Week 1
    5 Topics
    |
    1 Quiz
  2. Equations of Motion | Week 2
    3 Topics
    |
    1 Quiz
  3. Projectile | Week 3
    5 Topics
    |
    1 Quiz
  4. Equilibrium of Forces I | Week 4
    4 Topics
  5. Equilibrium of Forces II | Week 5
    4 Topics
    |
    1 Quiz
  6. Stability of a Body | Week 6
    4 Topics
    |
    1 Quiz
  7. Simple Harmonic Motion (SHM) | Week 7
    4 Topics
  8. Speed, Velocity & Acceleration & Energy of Simple Harmonic Motion | Week 8
    5 Topics
    |
    1 Quiz
  9. Linear Momentum | Week 9
    6 Topics
    |
    1 Quiz



Lesson 9, Topic 3
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Conservation of Linear Momentum

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Topic Content:

  • Conservation of Linear Momentum
  • Different Cases Of Collision

The law of conservation of linear momentum states that for a closed or isolated system of colliding bodies the total momentum remains constant, provided no external forces act.

OR

If two or more bodies in a closed or isolated system collide, their total momentum before collision is equal to their total momentum after collision provided no external forces act.

A Closed / Isolated System:
A closed or isolated system means a system in which no external force acts. Or it is a system in which there is no interference by any external factor.

Different Cases Of Collision:

If masses, M1, and M2, moving in the same direction with initial velocities U1 and U2, respectively, collide with each other and move in different directions

collision e1607185829553

From conservation of linear momentum, the total momentum before collision is equal to the total momentum after collision; therefore,

 

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