Displacement is the term for the distance traveled by an object in a given direction, not velocity, acceleration, or force.

Lift is generated by a pressure difference created as air flows over a wing. This process follows both Bernoulli's principle and Newton's third law of motion.

Thrust is governed by Newton's third law of motion. As an engine accelerates air or exhaust backward, an equal and opposite reaction force pushes the aircraft forward.

Isaac Newton first described inertia as the tendency of an object to resist changes in motion in his First Law of Motion.

Isaac Newton's First Law of Motion states that an object at rest remains at rest unless acted upon by an external force.

The SI unit for measuring speed is meters per second, reflecting the international standard for scientific measurements.

In a vacuum, no horizontal forces like air resistance act on a ball. Newton's First Law ensures its horizontal velocity remains constant since gravity acts only vertically.

Gravity exerts a downward force that only alters an object's vertical velocity. Horizontal motion is unaffected by gravity because the force acts perpendicularly to it.

Galileo Galilei first demonstrated that projectiles follow parabolic paths. In soccer, air resistance and ball spin cause slight deviations from this mathematical curve.