3.5 - Newton's laws of motion and momentum

• Impulse

  Change in momentum Force x time
• Inelastic collision

  Some loss of kinetic energy
• Linear momentum

  Mass x velocity
• Newton's 1st law

  An object will remain at rest or move at a constant velocity unless acted on by a net force
• Newton's 1st law

  An object will remain at rest or move at a constant velocity unless acted on by a net force
• Newton's 3rd law

  When one body exerts a force on another the other body exerts an equal and opposite force on the first body
• Newtons 2nd law

  Resultant force applied is equal to the rate of change of momentum
• Perfectly elastic collision

  Collision where kinetic energy is conserved
• Resistive force

  Any force acting in the opposite direction to motion They do work against the object reducing Ek
• Principle of conservation of linear momentum

  Total momentum is conserved