Unit 5 Physics Equations

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5 Terms

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Position or Velocity of a System’s Center of Mass:

The weighted-average position or velocity of the entire system


2
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Net Momentum(equation 1)

the net momentum of a system is the sum of each object’s momentum

Σp = m1v1 + m2v2 + ⋯

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Net Momentum(equation 2)

the net momentum of a system is directly related to the velocity of the center of mass

Σp = Mtot ∗ vcm

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impulse(cause)

an external force applied for a time interval

J = F∆t = Area of Fvt

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Impulse(effect)

the impulse on a system is equal to the change in a system’s momentum

J = ∆p

J = mvf − mv0