Work-Energy Theorem

W_{net} = \Delta KE = \frac{1}{2}mv_f^2 - \frac{1}{2}mv_i^2

Net work equals the change in kinetic energy.

Variables

W_net

Net work

Total work done

J

ΔKE

Change in KE

Final minus initial KE

J

m

Mass

Object mass

kg

v_f

Final velocity

Final speed

m/s

v_i

Initial velocity

Initial speed

m/s

Derivation

Integrate F = ma over displacement.

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