Work and the Work/Kinetic Energy Theorem Potential Energy

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Work and the Work/Kinetic Energy Theorem Potential Energy. ... The definition of work W =F Δx corresponds to the intuitive idea of effort: • More massive object will require more work to get to the same ... Use the work-kinetic energy theorem: x v = 10 m/s m = 25 kg k = 3000 N/m

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Work and the Work/Kinetic Energy Theorem Potential Energy. ... The definition of work W =F Δx corresponds to the intuitive idea of effort: • More massive object will require more work to get to the same ... Use the work-kinetic energy theorem: x v = 10 m/s m = 25 kg k = 3000 N/m
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Work-Energy Theorem The kinetic energy is dened as K = 1 2 mv2 The work done by the net force on the system equals the change in kinetic energy of the system Wnet = Kf Ki = K This is known as the work-energy theorem Units of K and W are the same (joules) Note: when v is a constant, K = 0 and Wnet = 0, e.g. Uniform circular motion 3
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Work-Energy Theorem The kinetic energy is dened as K = 1 2 mv2 The work done by the net force on the system equals the change in kinetic energy of the system Wnet = Kf Ki = K This is known as the work-energy theorem Units of K and W are the same (joules) Note: when v is a constant, K = 0 and Wnet = 0, e.g. Uniform circular motion 3
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Kinetic And Potential Energy Worksheet kinetic and potential energy worksheet name:_____ determine whether the objects in the following problems have kinetic or potential energy. then choose the correct formula to use: 2 ke = 1/2 m v or pe = mgh 1. you serve a volleyball with a mass of 2.1 kg. the ball leaves your hand with a speed of 30 m/s.
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we"can"calculate"the"mass"of"food"required:" (3600 kcal)(0.35) 1260 kcal. (3600 kcal)(0.60) 2160 kcal; and (3600 kcal)(0.05) 180 kcal; fat carbohydrate protein = = = = = = E E E " Now,"from"Table"7.1"we"can"convert the"energy"required"into"the"mass"required" for"each"component of"their"diet:" 135.5 g. 9.3 kcal 1 g 2160 kcal 9.3 kcal 1 g 526.8 g ...
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