Unit 3: Work, Energy, and Power

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Last updated 4:23 AM on 7/17/26
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14 Terms

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Work

the transfer of energy produced by the motion of an object due to an applied force

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Equation for Work

  • W = Fdcos(theta)

  • W = F (dot) D

  • F = applied force

  • D = displacement

  • Theta = angle between force & displacement

  • Nm = (kgm²/s² = [J]

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Work Equations

  • W = mv sub f²/2 - mv sub i²/2

  • K = 1/2mv²

  • W = delta K

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Kinetic

the energy of a moving object

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Work Energy Theorem

the relationship between Kinetic Energy and work

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Work Equation Part 2

  • W = delta K

  • K = 1/2mv²

  • W = 12mv sub f² - ½ mv sub i²

  • W = 1/2m(v sub f² - v sub i²)

  • W = -1/2mv sub i²

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