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There are 4 NRICH Mathematical resources connected to Stage5Mech Pendulum problems, you may find related items under Stage 5 Mechanics mapping document.
Broad Topics > Stage 5 Mechanics mapping document > Stage5Mech Pendulum problemsThings are roughened up and friction is now added to the approximate simple pendulum
See how the motion of the simple pendulum is not-so-simple after all.
Get to grips with the variables behind the motion of a simple pendulum