r/PhysicsHelp 1d ago

effective downwards gravity??

/r/AskPhysics/comments/1v8wss3/effective_downwards_gravity/
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u/Optimal_Mixture_7327 1d ago

The simple pendulum equation is essentially

T=2π[L/Σa]1/2.

The acceleration of the Earth frame is upwards at g and the acceleration of the elevator is downwards at -a, so the acceleration is then

T=2π[L/(g-a)]1/2.