Transcription of Impulse and Momentum - bowlesphysics.com
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Impulse and Momentum - bowlesphysics.com
AP Physics BImpulse and MomentumImpulse = MomentumConsider Newton s 2ndLaw and the definition of accelerationUnits of Impulse : Units of Momentum : Momentum is defined as Inertia in Motion NsKg x m/sExampleA 100 g ball is dropped from a height of h = m above the floor. It rebounds vertically to a height of h'= m after colliding with the floor. (a) Find the Momentum of the ball immediately before it collides with the floor and immediately after it rebounds, (b) Determine the average force exerted by the floor on the ball. Assume that the time interval of the collision is seconds. * *22212====== * *22=====smkgpsmkgpvmpafterbefore/* ) ( * ) ( = = = )) ( ( ) ()(= = = = Impulse is the AreaSince J=Ft, Impulse is the AREA of a Force vs.
Impulse is the Area Since J=Ft, Impulse is the AREA of a Force vs. Time graph.
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