A projectile is any object that once projected or dropped continues in motion by its own inertia and is influenced only by the downward force of gravity.
Use free body diagrams for projectiles
Downward force = downward acceleration
Without gravity, there would be no falling but because of gravity an object becomes a projectile like a cannon.
In a projectile the only force is gravity
B
Acceleration of gravity- this correlates with free falling objects and horizontally launched projectiles
Presence of gravity does not affect horizontal motion
C
In horizontal projectile- horizontal velocity remains constant during the course of the trajectory and the vertical velocity changes by 9.8 m/s every second
Velocity is constant
Upwards at an angle- would not go as far due to gravity
D
Vertical displacement depends on horizontal velocity
E
The horizontal velocity of a projectile does not affect how far (or how fast) a projectile falls vertically
Perpendicular components of motion are independent of each other