Question

What type of motion only occurs when there is one force applied at the beginning of the trajectory after which there is no interference apart from gravity?

Answer 1

projectile

projectile motion: A form of motion where a particle  called a projectile  is thrown obliquely near the earth's surface, & it moves along a curved path under the action of gravity. The path followed by a projectile motion is called its trajectory. Projectile motion only occurs when there is one force applied at the beginning of the trajectory after which there is no interference apart from gravity.