1. The problem statement, all variables and given/known data A soccer ball is kicked at 38.0° with respect to the horizontal and travels 64.0m before striking the ground. a) what is its initial velocity? b) how long was it in the air? 2. Relevant equations dv=1/2*at2 dh=Vh*Δt Kinetic equation d=Vi*t+ 1/2*at2 dh=-V2*sin2θ /g sinθ=opp/hyp cosθ=adj/hyp Δt=-2Vsinθ / g 3. The attempt at a solution a) dh=cos(38)*64m= 50.4m dv=sin(38)*64m=39.4m Find t=√(39.4m/(0.5*9.8))=7.96s plug this value into the d=Vi*t+ 1/2*at2 equation and solve for Vi if d=64m Vi=3.14m/s b) V=dh/Δt= 50.4m/7.96s=6.33m/s Then solve for Δt=-2Vsinθ / g= 0.80s I would like for someone to just double check my answers and that I used the appropriate equations and that the number of significant figures are being respected! Thanks so much in advance!