Chapter 1, Problem 1.49PP

One measure of a baseball pitcher's performance is earned run average or ERA. It is the average number of earned runs allowed if all the innings pitched were converted to equivalent nine-inning games Therefore, the units for ERA are runs per game,

1.49 The maximum pressure that can be developed for a certain fluid power cylinder is $20.5$ MPa. Compute the force it can exert if its piston diameter is $50$ mm.