Elevator Physics

This interactive simulator explores Elevator Physics in Classical Mechanics. Person on a scale in an elevator. See apparent weight change. Use the controls to change the scenario; watch the visualization and any graphs or readouts to connect the model with lectures, labs, and homework.

Who it's for: Suited to beginners and first exposure to the topic. Typical context: Classical Mechanics.

Key terms

  • elevator
  • physics
  • elevator physics
  • mechanics
  • classical

How it works

Standing on a scale in an elevator, you measure the normal force N. In the ground (inertial) frame, N โˆ’ mg = ma when the elevator accelerates upward with acceleration a, so N = m(g + a). If the cable snaps and the cabin falls freely, a = โˆ’g and N = 0 โ€” you feel weightless.

Key equations

N โˆ’ mg = ma ย โ‡’ย  N = m(g + a)
Free fall: a = โˆ’g โ†’ N = 0