An "ideal" projectile trajectory ... without the influence of wind or air resistance ... is a section
of a parabola. That's the figure you get when the horizontal position changes at constant speed
and the vertical position changes at a speed that is itself changing at a constant rate.
Trajectory is the path a projectile follows Parabola is the shape of this path
A projectile has minimum speed at the top of the trajectory.
The path of a projectile is it's trajectory.
A projectile's trajectory is the curve along which it moves through the air or space. When a projectile is fired on earth the simplest theory holds that its trajectory will be parabolic in form. However, this does not account for air resistance and other factors.
trajectory
trajectory
A trajectory is the angle made with the horizontal when a projectile is fired. Suppose the projectile is a cannon ball. Assuming air is frictionless, that cannon ball will travel the greatest distance if the trajectory is 45 degrees from horizontal.
Assuming negligible air resistance, the acceleration of a projectile near the Earth's surface is always the gravitational 9.81 m/sec/sec downwards, regardless of where in the trajectory the projectile is.
Depending on the shape, speed and change in attitude (especially a tendency to tumble) of the projectile its losses of speed at various instants along its trajectory could be quite considerable owing to friction. Under many conditions air friction is proportional to the fourth power of speed. Thus, the horizontal component of the trajectory could be subject to considerable loss of magnitude. As one would expect the shape of the projectile will affect it's path considerably too.
That is often referred to as a trajectory.
The value of the vertical speed at the highest point of the projectile's trajectory is the lowest speed at the maximum height reached.
A catapult's trajectory is the path that your projectile takes as it flies through the air.