1. Vertical Acceleration: Gravity causes a constant acceleration known as "gravitational acceleration" (usually denoted by 'g') in the downward direction. This means that the vertical velocity of a projectile continuously increases as it moves away from its initial point. Due to gravity, the projectile's velocity in the vertical direction becomes more negative (if it's moving upward) or less negative (if it's moving downward) with time.
2. Parabolic Trajectory: The constant downward acceleration due to gravity causes the path of a projectile to be a parabolic curve. This is because the horizontal velocity remains constant while the vertical velocity changes due to gravity. The combination of horizontal and vertical motion results in a curved path.
3. Maximum Height: At the highest point of the projectile's trajectory, its vertical velocity becomes zero momentarily before reversing direction and moving downward. This point is known as the maximum height or the peak of the projectile's motion.
4. Range: The range of a projectile refers to the horizontal distance it travels before hitting the ground. Gravity affects the range by determining how long the projectile remains in the air. A projectile with a higher initial velocity will travel a longer distance horizontally before gravity pulls it back to the ground.
5. Time of Flight: The time of flight is the total duration the projectile remains in the air before landing. Gravity influences the time of flight by determining the rate at which the projectile loses its upward velocity and begins to descend.
6. Impact Velocity: The impact velocity of a projectile is the velocity at which it strikes the ground. Gravity affects the impact velocity by continuously increasing the projectile's downward velocity as it falls.
In summary, gravity is responsible for the downward acceleration, parabolic trajectory, maximum height, range, time of flight, and impact velocity of a projectile. It plays a fundamental role in the motion of projectiles, influencing their behavior throughout their flight path.
