Glass Panel
40 in
28 in
100mm
Impact Object
Critical Velocity:
45 km/h
(glass breaks above this)
Result:
SAFE
Force
200 N
40% of limit
Energy
1 J
Pressure
20 kPa
Physics Equations
1. Momentum
Δp = m × v
Δp = 2.0 kg × 1.0 m/s = 2.0 kg·m/s
2. Force (Impulse)
F = Δp / Δt
F = 2.0 kg·m/s ÷ 0.055 s = 36 N
3. Compare to Code
F > 500 N ?
36 N ≤ 500 N → SAFE
4. Pressure
P = F / A
P = 36 N ÷ 0.01 m² = 3,600 Pa