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8 Cards in this Set
- Front
- Back
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Work-Energy Theorem
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work performed by the net force acting on a body is equivalent to the change in kinetic energy of the body
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Work-Energy Theorem Formula
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W_F_net = 1/2 mv₂² - 1/2 mv₁²
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Work done by a constant force
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W_F = F∆x
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average acceleration formula
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a = ∆v / t
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Law of Conservation of Mechanical Energy
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Energy is conserved when non-conservative forces do no work
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non-conservative forces
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those that do work that is path-dependent
e.g. frictional forces |
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ME
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mechanical energy
sum of an object's kinetic energy (KE) & gravitational potential energy (PE) |
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ME formula
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ME = KE + PE
substitute for KE & PE ME = 1/2 mv² + mgy |
