- The first model assumes vy is constant and vx is only effected by gravity
- v0=l/mass
- t{s}=2v0sin(θ)/g
- h{m}=v02sin(θ)2/2.0*g
- d{m}=v0sin(2θ)/g
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- The second model assumes initial height might not be zero
- vy0=v0sin(θ)
- y0=ydiff and x0=0
- vyn=vyn-1-gdt
- xn=xn-1+v0cos(θ)dt
- yn=yn-1+vyn-1dt
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- The third assumes drag due to speed
- D=1.2kπ0.3662
- vx0=v0cos(θ) and vy0=v0sin(θ)
- v=sqrt(vx2+vy2)
- axn=-D*v*vx/mass
- ayn=-g-D*v*vy/mass
- vxn=vxn-1+axdt and vyn=vyn-1+aydt
- xn=xn-1+vxn-1dt+axn-1dt2
- yn=yn-1+vyn-1dt+ayn-1dt2
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4. Only God knows
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