Physics Energy and Momentum Quiz 4

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Last updated 8:07 AM on 4/10/26
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24 Terms

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  • Solve backwards to find vi

  • First use conservation of energy Ei = Ef to solve for vf, then use conservation of momentum pi = pf to solve for vi

<ul><li><p>Solve backwards to find vi</p></li><li><p>First use conservation of energy Ei = Ef to solve for vf, then use conservation of momentum pi = pf to solve for vi</p></li></ul><p></p>
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The net work done on an object =

Change in KE (With energy theorum)

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KE =

1/2mv虏

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Work done by spring =

1/2kx虏 (where k = spring constant)

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Work done by angled force =

Fdcos(theta)

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No friction =

energy conserved

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Momentum (p) is always conserved in:

collisions

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Mechanical energy is only conserved in this type of collision

Elastic collision

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P =

Mv

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The spring Force (Hooke鈥檚 Law)

Fx = -kx

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Delta KE =

1/2m(vf虏-vi虏)

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Impulse momentum theorem

Fnet= deltap/deltat