Action and Reaction.

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Presentation transcript:

Action and Reaction

Ex: A rhino has large momentum because of its high velocity. Momentum- a property a moving object has because of its mass and velocity. Ex: A rhino has large momentum because of its high velocity. Ex: Elephant has large momentum because of its large mass. http://www.peetvs.co.za/uploads/157/momentum.swf

Law of conservation of momentum- the total amount of momentum does not change unless outside forces act on the object. http://lectureonline.cl.msu.edu/~mmp/applist/billy/billiard.htm

Moving s = 20 m/s Stop s = 0 m/s

Slow down s = 10 m/s Moving s =10 m/s

Momentum Equation Variable Ending Units P = Momentum kg m/s m = mass kg v = velocity m/s .

Momentum Equation P = m X v m = P / v v = P / m P . . X v m