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Applied Maths: Collisions Applets

Collisions: Two dimensional (higher level) Both of these applets are similar - can't say I quite understand everything . . . 3 Star
  but useful nonetheless 3 Star
  This one allows for slightly more interactivity 4 Star
Re-distribution of momentum experienced in road collision
From a lecture given by Dr Kevin McGuigan for the IOP. Moves on to friction after.
Momentum experienced by an astronaut (cartoon):
While you're there check out all the other examples listed on the left hand side
Consevation of momentum
The most realistic of the applets on this topic, but limited to five minutes per day
Useful for showing elastic and inelastic collisions
With an air track
As above
Demonstrations of Impulse link Youtube. 7 min  
Rocket travel
Japanese man uses a bunch of water rockets to take off!! Youtube.
One minute
Everything you need to know about water rockets
Including how to make them
Great site for short, high speed video clips
Col John Stapp acts as his own crash test dummy link In order to acquire data on the human body's ability to withstand extreme forces.YouTube. 4 mins 4 Star
Crash. Horizon documentary
Detailing the death toll that has resulted from the car and some of the innovations developed to make them less lethal. Youtube. 45 min
4 Star
Newton's Cradle Applet
Or see a video clip of it, together with a little bit more analysis
If 1 ball goes in, why can't 2 balls go out with half the initial speed?
Most realistic version
from physics.org
Conservation of angular momentum
kids on a merry-go-round. Notice the relationship between angular velocity and radius. Youtube. 1 min
Video clip of demo with lady with dumbells on a rotating chair. Arms come in, she speeds up.