t = 0.000 s KE = 0.000 J  |  PE = 0.000 J  |  E = 0.000 J v₂ = 0.000 vₐ = 0.000 v_b = 0.000 m/s
m₁ — moving system
m₁ — moving pair total mass (kg)
k₁ — pair spring stiffness (N/m)
L₁ — pair spring rest length (m)
T₁ — pair internal period (s, via reduced mass) · driven:
mB / m₁ — fraction of pair mass in mᵦ (log-scale slider)
v — initial velocity of pair (m/s)
e — mᵦ↔m₂ restitution (0=inelastic, 1=elastic)
m₂ — anchored system
m₂ — stationary mass (kg)
k₂ — anchor spring stiffness (N/m)
L₂ — anchor spring rest length (m)
T₂ — anchor natural period (s) · driven:
β₂ — anchor spring cubic term (0=linear, >0=trampoline)

dt (s): Speed:
Parameter Sweep