* Projectile Motion: A projectile is an object that is thrown or launched and then continues to move under the influence of gravity alone.
* Gravity's Role: Gravity acts downwards on the projectile, causing it to follow a curved path. This path is typically parabolic, though other factors like air resistance can affect the exact shape.
Initial Force:
While gravity is the dominant force during the projectile's flight, an initial force is required to launch the object. This initial force could be:
* A push or throw: This provides the initial velocity to the object.
* An explosion: This can launch an object with significant initial velocity.
Other Forces:
* Air Resistance: Air resistance (drag) acts opposite to the direction of motion and can slow the projectile down.
* Wind: Wind can push the projectile sideways, altering its trajectory.
In Summary:
The force that makes an object a projectile is the force of gravity, which constantly acts on the object after it is launched. An initial force is necessary to give the projectile its starting motion.
