Impulse and Momentum

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Impulse and Momentum
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Definition of Linear Momentum

• The linear momentum of an object is defined to be
  the product of its mass and its velocity
• Linear momentum is a vector quantity
• Units are kgm/s

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Momentum is a Vector

• In 2 dimensions
• Magnitude related to kinetic energy

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Momentum and Force

• The time rate of change in momentum is equal to
  the net force acting on an object

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Impulse-Momentum Theorem

• The impulse of a force acting on an object equals
  its change in momentum
• This is the impulse momentum theorem

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Conservation of Momentum

• If a system is isolated (no external forces)
  momentum is conserved

• For two objects