1. The problem statement, all variables and given/known data Marian who is standing on her balcony is surprised by a pigeon, and throws a flowerpot up, in the air at 2.1 m/s. It takes a total of 3 s for the flowerpot to smash to the ground. The flowerpot experiences acceleration due to gravity of 9.8m/s a) How high is Marians balcony? b)How fast was the flowerpot moving just before it smashed into the ground? 2. Relevant equations Δd=V1Δt + 1/2 aΔt^2 V2=V1+aΔt Δd=V1Δt - 1/2 aΔt^2 (By the way id like to know what this third equation is for, when is it appropriate to use it? I know when to use it when i see a v-t graph and am required to find displacement, and geometrically there are 2 objects in graph, i have to find area, of one and to do so would require me to subtract the area from other geometrical object, in such a scenario i would use the 3rd equation, but if the quest is in written word problem format, i dont know when to use the 3rd formula.) 3. The attempt at a solution a) v=2.1m/s Δt=3 s a=-9.8m/s Δd=V1Δt + 1/2 aΔt^2 =(2.1)(3)+1/2(-9.81)(3)^2 =6.3+1/2(-9.81)(9) =6.3+1/2-88.79 =6.3-44.14 Δd=-37.82m b) v1=2.1m/s Δt=3s a=-9.8m/s v2=v1+aΔt =2.1+(-9.8)(3) V2=-27.3 m/s Do these answers/solutions make sense?