1. The problem statement, all variables and given/known data A baseball of mass 250g (0.25kg), pitched with a speed of 40m/s, is caught by a catcher whose glove moves backward 0.25m while stopping the ball. a) What is the kinetic energy of the ball? (solved) b) How much work did the catcher's glove do on the ball? c) What was the average stopping force on the ball? Given: mass=0.25kg; speed=40m/s; distance=0.25m 2. Relevant equations Ek = 1/2(m)(v^2) Work = F x d 3. The attempt at a solution I am completely stumped, I'm trying for the life of me to figure out how to find the Applied Force on the ball with what I've been given this unit. I'm not sure how to solve for the Force Applied without two of the other variables given for the work equation. As for question C, what are they asking for? I'm unsure of what they mean by "stopping force".