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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



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Topic Content:

  • Definition of Momentum
  • Definition of Impulse

What is Momentum?

The momentum of a body is the product of the mass of a body and its linear velocity. The symbol that is used to represent momentum is p.

Momentum, p = mass (m) × velocity (v)

p = kg × ms-1.

Its unit is kgms-1. It is a vector quantity.

The momentum of a body depends on the mass and the velocity with which the body is moving. Its direction is the same as the direction of the object’s velocity.

A bus can have a large momentum even if it’s moving slowly because of its large mass.

momentum2 e1607244080795

A bullet can have a large momentum even though it has a small mass because it’s moving with a high velocity.

bullet momentum e1607244600392

If an object is at rest it has no momentum no matter how large its mass is.

 

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