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Momentum and Law of Conservation of Momentum
Transcript of Momentum and Law of Conservation of Momentum
Impulse delivered to an object is equal to change momentum. SI unit is Newton x Second
Formula: J= Ft Conservation of Momentum If two objects that are not subjected to any external forces interact, the total momentum of the objects before the interaction is equal to their total momentum after the interaction.
P1i+p2i = p1f+p2f Review Impulse is equal to momentum
Momentum is vector quantity
Impulse is vector quantity and it's direction is the direction of net force.
Conservation of momentum is m1iv1i+m2iv2i=m1fv1f+m2fv2f Momentum is a vector quantity, possessing a direction as well as a magnitude: P = mv
P- momentum m- mass v- speed
The momentum SI unit is in kilograms meters/second (kg m/s). Newton's second Law of Motion developed and Newton recognized that the unbalanced force on an object cause a change in the object's momentum: F= p/t Chief Professor: Mr. Daniel Momentum Laws of Conservation F= ma F=-F Isaac Newton's Laws Key:
i - initial
f - final Key:
i - initial
f - final Problem: A 0.50-kg object traveling at 2.0 m/s east collides with a 0.30kg object at 4.0 m/s west. After collusion, the 0.30 kg object is traveling at 2.0m/s east. What are the magnitude and the direction of the velocity of the object?