Answer
Impulse is defined as the change in momentum of an object over time. In each of the following pairs of actions, there is a difference in the amount of impulse applied to the object, which results in different outcomes.
Impluse= J=$\frac{\Delta p }{ \Delta t} $
(a) A golfer's long drive and a short chip shot:
In a long drive, the golfer applies a large force to the golf ball over a long period of time, resulting in a large impulse and a high velocity of the ball. In contrast, a short chip shot requires a smaller force applied over a shorter period of time, resulting in a smaller impulse and a lower velocity of the ball.
(b) A boxer's jab and a knockout punch:
A jab is a quick punch used to distract or set up an opponent, and usually has a smaller force and a shorter duration than a knockout punch. A knockout punch, on the other hand, involves a larger force applied over a longer period of time, resulting in a larger impulse and a greater change in momentum, potentially causing the opponent to be knocked out.
(c) A baseball player's bunting action and a home-run swing:
In a bunting action, the baseball player applies a small force over a short duration, resulting in a small impulse and a low velocity of the ball. In contrast, a home-run swing requires a larger force applied over a longer period of time, resulting in a larger impulse and a high velocity of the ball, potentially resulting in a home run.
Work Step by Step
Impluse= J=ΔpΔt
