1. The problem statement, all variables and given/known data A 0.15 kg baseball moving at +26 m/s is slowed to a stop by a catcher who exerts a constant force of 390 N. How long does it take this force to stop the ball? How far does the ball travel before stopping? 2. Relevant equations 3. The attempt at a solution For P=mV = 0.15Kg x 26M/s = 3.9Kgm/s. Then what equation? I = F deltaT = m deltaV deltaT=m deltaV / F = 3.9/390 = .01s Is that correct? What about last question of travel distance. Is speed constant?