1. The problem statement, all variables and given/known data For 6.5 s, a rocket rises in a straight line oriented at 70° from the horizontal axis with a constant acceleration module of 8m/s2. Then she is goes into free fall. Find: a) the maximum height b) its horizontal reach 2. Relevant equations t = ( vfv - viv)/a d = viht + (0.5)at2 I believe? y= yi + vyot -(0.5)gt2 x= vxot 3. The attempt at a solution so ive got these given infos: t= 6,5 xi= 0 xf= ? yi= 0 yf= ? a= 8 m/s2 a) to find yf at vf=0 y= vo(sin(70))t -(0,5)(9,8)t2 But then, i wonder if i should replace gravity with acceleration, but seeing as were working with y, doesnt that mean i HAVE to use -9,8 as my g (or a) value? From what i understand, I only use 8m/s2 when i have to calculate wth the values of x? I'm confused. Someone explain that at least! I have a strong feeling im heading in the wrong direction with my work so far. Boost me? b) as for this one, im guessing i have to find xf after 6,8 seconds once i find the value of v0, I'm guessing things will fall into place. But do correct me if im wrong?