Should I Speed Up?

Visualizing how speed affects travel time, collision force, and braking distance.

Travel distance N =
km
{{ m.speed }} km/h {{ line.text }} i {{ hoveredMark.speed }} km/h {{ row.emoji }} {{ row.label }} {{ hoveredMark[row.key] }}{{ row.unit }}

Speed vs. Physics

Each metric plotted against speed — scales differ, toggle metrics to compare.

Formulas

Travel time
t = N / v
Collision force (into a rigid barrier)
F = m·v² / (2·d_c) — kinetic energy ÷ crush distance
Full-stop braking distance
d = v·t_r + v² / (2·μ·g) — reaction + braking

v is converted km/h → m/s (÷ 3.6) inside the force & distance formulas.

Constants used

Vehicle mass m
1500 kg
Crush distance d_c
0.5 m
Friction μ
0.7 (dry)
Gravity g
9.81 m/s²
Reaction time t_r
1.0 s
Speed range
0–{{ maxSpeed }} km/h

Collision force assumes a fixed crush distance into a rigid barrier — real crashes vary widely. Educational use only.