Projectile motion is a form of motion in which an object or particle is thrown, launched, or otherwise projected into the air and then allowed to freely move under the influence of gravity. This type of motion follows a curved path known as a parabola.
The initial velocity of a projectile is the velocity at which it is launched. In projectile motion, the final y velocity is impacted by the initial velocity because the initial velocity determines the vertical component of the projectile's motion. The higher the initial velocity, the higher the final y velocity will be, and vice versa.
No, the final y velocity is not always lower than the initial velocity in projectile motion. It depends on the angle at which the projectile is launched. If the angle of launch is 45 degrees, then the final y velocity will be equal to the initial velocity. However, if the angle of launch is greater than 45 degrees, the final y velocity will be lower than the initial velocity.
The impact time of a projectile is the time it takes for the projectile to hit the ground or a target. The impact time is directly affected by the initial velocity of the projectile. The higher the initial velocity, the longer the impact time will be since the projectile will travel a longer distance.
Air resistance, also known as drag, can affect the final y velocity in projectile motion by slowing down the projectile's vertical motion. This results in a lower final y velocity compared to the initial velocity. However, the extent to which air resistance affects the final y velocity depends on factors such as the shape and size of the projectile, as well as the density and viscosity of the air.