1. The problem statement, all variables and given/known data 1. A 95 g arrow is shot by a bow from ground height such that it is moving at 25m/s at a height of 25m. Ignore air resistance. a) What was the launch speed? b) How much work did the bow do on the arrow? m=95g (.095 kg) V2= 25m/s d=25m t=1 s 2. Relevant equations Ek= ½ mv(squared) W= deltaE= Fapp(d) 3. The attempt at a solution a) The launch speed was either 0m/s OR 25 m/s. b) Ek= ½ mv(squared) = ½ (0.095)(25)2 =1.1875 W= deltaE= Fapp(d) = 1.1875(25) = 29.69 J * i cant figure out whether the 25m/s is the v2. or is it irrelevant and i should assume v1=0m/s. this is gr. 11 stuff, any suggestions?