It is easier to catch a fast-moving cricket ball by pulling back your arms while taking the catch allowing you to catch the ball by applying a small force on it. If you keep your arms still as you catch the ball, you have to apply a much larger force on the ball. The durations for which the forces are applied are also different in the two cases. When you pull your arms back with the ball, you apply a smaller force for a longer time because the ball stops completely only when your hands stop. In the second case, the ball stops almost immediately as it hits your still hands. You have to apply a larger force for a lesser time.