Ever wondered what happens when you shoot a bullet in water?
The deeper the water, the faster the bullet slows down. Water’s higher density causes much more resistance than air, rapidly draining the bullet’s kinetic energy. In just a few meters, the bullet can come to a complete stop!
Why? Water creates a drag force that decelerates the bullet. The formula behind this?
Drag Force (Fₑ) = ½ * Cₔ * ρ * A * v²
Where:
Cₔ = Drag coefficient (depends on the bullet shape)
ρ = Water’s density (about 1000 kg/m³)
A = Bullet’s cross-sectional area
v = Bullet’s velocity
As the bullet travels, drag slows it down and uses up its energy quickly. In just a few meters, the bullet is stopped dead in its tracks!