lightgrav said:yeah? 3 situations:
start , in-flight , end
they don't mean "why" , they mean "how do you know this"
Impulse is the change in momentum of an object, while force is the push or pull that causes this change. In pitching and catching a fastball, the impulse is the force applied to the baseball by the pitcher's hand, and the force is the reaction of the catcher's glove on the ball.
The greater the impulse and force applied to the ball, the faster it will travel. Additionally, the direction and angle of the force can also affect the movement of the ball, such as creating spin or changing its trajectory.
The strength and technique of the pitcher, the weight and composition of the ball, and air resistance are some factors that can affect the impulse and force of a fastball.
The catcher's glove is designed to absorb the force of the fastball and reduce the impact on the catcher's hand. The angle and positioning of the glove can also affect the direction and movement of the ball upon impact.
By understanding the principles of impulse and force, a pitcher can adjust their technique and aim to increase the speed and accuracy of their fastball. They can also use this knowledge to develop different types of pitches with varying speeds and movement.