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# What does "projectile" mean in physics?

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In physics, a projectile is an object to which some velocity is provided and is then left to move in the gravitational field under the influence of only the gravitational force. Examples of projectiles include a ball thrown by a player or hit with a baseball bat.

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The movement of a projectile is divided into two perpendicular components: the horizontal and the vertical. A projectile shot anywhere between these two directions will have some motion in both directions and a curved trajectory. The path followed by the projectile after being fired is known as its trajectory. The range of a projectile is the horizontal distance covered by it.

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## Related Questions

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An object's acceleration is constant and downward due to the force of gravity In projectile motion, but the object's velocity reverses direction during the object's motion. This is because of the inertia described in Newton's first law of motion and because acceleration and velocity are two different physical quantities. Velocity is the speed and direction of an object, while acceleration is the rate that the velocity changes.

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Terminal velocity is the maximum velocity an object reaches when it is falling under the force of gravity or another constant driving force. The object is subject to a resistance that increases as the velocity increases, and when the resistance equals the driving force, terminal velocity occurs.

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Terminal velocity is the velocity at which an object in freefall no longer accelerates due to gravity because the drag force of the surrounding air equals the gravitational force of Earth. Objects with more mass have more weight, and it takes more drag force to reach terminal velocity.