* Projectile Motion: The motion of a projectile is governed by gravity, which acts vertically downwards. This means the acceleration due to gravity (g) is always pointing downwards.
* Velocity: The velocity of a projectile has both horizontal and vertical components. The horizontal component remains constant (ignoring air resistance), while the vertical component changes due to gravity.
At No Point are They Parallel:
* At the highest point: The vertical component of velocity is zero, but the acceleration is still downwards due to gravity. The vectors are perpendicular.
* During ascent: The velocity vector points upwards (positive vertical component), while the acceleration vector points downwards. They are opposite in direction.
* During descent: The velocity vector points downwards (negative vertical component), while the acceleration vector still points downwards. They are in the same direction, but not parallel, as the velocity has a horizontal component.
Conclusion: The velocity and acceleration vectors of a projectile are never parallel because the acceleration due to gravity is always vertical, while the projectile's velocity has both vertical and horizontal components.
