1. The problem statement, all variables and given/known data A 0.028 kg bullet is fired vertically at 185 m/s into a 0.15 kg baseball that is initially at rest. The bullet lodges in the baseball and, after the collision, the baseball/ bullet rise to a height of 37 m. (a) What was the speed of the baseball/bullet right after the collision? (b) What was the average force of air resistance while the baseball/bullet was rising? (Consider the positive direction to be upwards.) 2. Relevant equations conservation of momentum. 3. The attempt at a solution m1v1=m2v2 yeilding v2 (velocity of ball/bullet combo) of 29.1 m/s. This was correct. However, I can't figure out b. I tried using Force of Air Resistance = KE - PE, but that doesn't work. I also tried using Force Air Resitance =KE/h - m(total)-g That didn't work either (found it on yahoo answers). What am I missing here?