Question

During a neighborhood baseball game in a vacant lot, a particularly wild hit sends a 0.144-kg baseball crashing through the pane of a second-floor window in a nearby building. The ball strikes the glass at 14.9 m / s, shatters the glass as it passes through, and leaves the window at 11.3 m / s with no change of direction. What is the magnitude of this impulse

and the ball is in contact with the glass for 0.0107 s as it passes through. Find the magnitude of the average force of the glass on the ball (a positive number).