L= L1 + L1*a*t
L- L1= L1*a*t
a= ( L-L1) / L1 t
L = L₁(1 + at)
L = L₁ + L₁at
L - L₁ = L₁at
a = (L - L₁) / L₁t
L= L1 + L1*a*t
L- L1= L1*a*t
a= ( L-L1) / L1 t
L = L₁(1 + at)
L = L₁ + L₁at
L - L₁ = L₁at
a = (L - L₁) / L₁t