Work–energy theorem (W_net = ΔK)

jee-mainjee-advancedneet-ug

W_net = ΔK

What each symbol means

SymbolWhat it stands for
W_netNet work by all forces (J)
\Delta KChange in kinetic energy (J)

When to use this

Inertial frame; includes work by every force unless you split conservative/non-conservative carefully in extended forms.