Projectile 1
x(t) = v₀·cos(θ)·t
y(t) = h₀ + v₀·sin(θ)·t − ½g·t²
Range = v₀·cos(θ)·T
T = (v₀sin(θ) + √(v₀²sin²θ + 2gh₀)) / g
H_max = h₀ + v₀²sin²θ / (2g)
KE = ½mv² · PE = mgy