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A projectile is thrown from top a building 30m high.. After 2 seconds it lands on a point 20 m horizontally away on a hill which is 16m above the horizontal ground level. Determine velocities at A and B.

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-b+√b²-4ac 2a x = x₂ + V₁xt + ²axt², V₁₁x = V₁x + axt, (v₁₁x)² = (v₁x)² + 2axx, t == Ñƒ = V₁ + V₁¸yt + ² α¸t², Vf₁y = V₁y+āÿt, (Vƒ‚y)² = (v₁y)² + 2a,ÿ
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