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Assemble a cart-and-pulley experiment, release the system, inspect every force, and collect measured evidence for how net force and inertia determine acceleration.
Experimental loop
Build the apparatus, predict the response, run the motion, then test ΣF = ma against the recorded data.
01
Build
02
Predict
03
Release
04
Measure
STEMORIA experimental mechanics simulation
deterministic dynamics · 3D apparatus · instruments · force audit
Build the system, release it, inspect forces, and collect evidence that the measured acceleration follows the net force acting on mass.
system state
Accelerating together
WebGL dynamics bench
drag to orbit · wheel to zoom
Cart mass
1.2 kg
Hanger mass
0.3 kg
Acceleration
1.334 m/s²
Tension
2.543 N
Velocity
0 m/s
Live instruments
The readouts come from the same solver state as the cart.
Force sensor
2.543 N
rope tension
Accelerometer
1.334 m/s²
track direction
Photogate A
armed
Photogate B
armed
Newton II audit
Driving weight
2.943 N
Cart ΣF
1.601 N
mcart × a
1.601 N
Residual
0 N
For the cart alone, tension and track friction set ΣF. For the coupled system, the hanging weight is the external driving term and both masses contribute inertia.
Trial recorder
Compare force, mass, acceleration and tension across controlled runs.
Run the apparatus, then record a trial to start your data set.