Physics 111: Elementary Mechanics

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Physics 111 Elementary Mechanics Lecture 6

• Carsten Denker
• NJIT Physics Department
• Center for SolarTerrestrial Research

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Energy and Work
Kinetic energy
Work done by a constant force
Workkinetic energy theorem
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Work Done by a Gravitational Force
Work done by gravitational force
Tomato thrown upward
Lifting/lowering an object
Change in kinetic energy
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Work Done by a Spring Force
Hookes law
Work done by a spring force
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Work Done by a General Variable Force
Work variable force

• Calculus
• Divide area under curve
• Add increments of W (numerically)
• Analytical form?
• Integration!!!