Biased Runs and Drift

Run-Tumble Time Sets Drift Speed

Run and tumble timing turn the biased displacement into a drift speed. Exact arithmetic here means exact results for the stated model inputs; measured inputs still carry uncertainty and significant-figure limits.

highlighted = computed this step

Add run time and tumble time per cycle

Each cycle uses run time 2 s and tumble time 1 s over 8 cycles.

2+1=3 s2+1=3\ \text{s}
Run tumble drift ledgerBiased runs plus run/tumble timing determine drift speed.drift speed16/24 s

Divide displacement by total time

Net displacement 24 m over total time 24 s gives drift speed 1 m/s.

24/24=1 m/s24/24=1\ \text{m/s}
Run tumble drift ledgerBiased runs plus run/tumble timing determine drift speed.drift speed16/24 s