Chapter 12, “Energy”
Work
W = FΔx
where Δx = displacement and F = force in the direction of displacement.
Kinetic Energy
KE = ½mv2
where m = mass and v = speed.
Work-Energy Theorem
W = ΔKE = KEf – KEi
or
where the force and displacement are in the same direction and v is speed.
Gravitational Potential Energy
GPE = mgy
where m = mass, g = acceleration due to gravity, and y = height.
Conservation of Mechanical Energy (Simplified)
KEi + PEi = KEf + PEf
or
Conservation of Mechanical Energy (Modified)
KEi + PEi = KEf + PEf + Eo
or
where Eo represents ...
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