Here's why:
* Gravity is a constant force: Gravity pulls everything with mass towards each other. It's a continuous force that acts on everything, including bullets.
* Guns provide an impulse: Firing a gun provides a brief, powerful force (an impulse) to the bullet, propelling it forward. This force only lasts for a short duration while the bullet is in the barrel.
* Motion, not force: The bullet's motion, not the force of the gun, overcomes gravity. Once the bullet leaves the barrel, the only force acting on it is gravity, causing it to arc downwards.
Think of it like this:
Imagine you jump up in the air. Your legs provide a force upwards, but gravity pulls you back down. The same principle applies to a bullet. The gun provides an initial upward force, but gravity brings the bullet back down to Earth.
In summary, firing a gun doesn't directly counteract gravity. Instead, it provides an initial force to launch the bullet, allowing it to travel a certain distance before gravity pulls it back down.
