Momentum and Impulse
- Created by: Laura Charles
- Created on: 19-05-12 21:32
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Linear Momentum-defined as product of mass and velocity Units-Kgms^-1 or Ns^-1
P=mv
Conservation of linear momentum-if no external forces act on a system of colliding objects, the total momentum of the object remains constant.
Total momentum before collision=total momentum after collision
-if stationary at start m2v2=0
-m1v1+m2v2=(m1+m2)v3
Momentum is a vector quantity
Oblique collisions-velocitiesresolvede into perpendicular components then each direction considered separately
Momentum only conserved if no external forces act-i.e-no friction
Impulse=Ft Units=Ns
- Force applied, object accelerates
- Force…
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