Final answer:
If a gun is pulled too fast, the bullet may not reach its intended speed, affecting the recoil velocity of the gun. Holding the gun tightly against the shoulder and allowing the bullet to accelerate properly minimizes the pain from the rifle's kick.
Step-by-step explanation:
In physics, when a gun is fired, there is a reaction force known as recoil. This recoil occurs because of the conservation of momentum. If the gun is pulled or moved too fast, the bullet will not be able to fully accelerate, and the recoil velocity of the gun will be affected.
For example, if you hold the gun loosely and pull it too fast, the bullet may not reach its intended speed, and the recoil velocity of the gun will be higher. On the other hand, if you hold the gun tightly and pull it at an appropriate rate, the bullet will accelerate properly, resulting in a lower recoil velocity.
To minimize the pain from the rifle's kick, it is important to hold the gun tightly against the shoulder and let the bullet accelerate to its intended speed.