Two-Dimensional Kinematics

These flashcards cover key terms and concepts from the chapter on Two-Dimensional Kinematics, including projectile motion, velocity components, and principles of motion.

Projectile Motion

The path of an object thrown or projected into the air, influenced only by gravity and air resistance.

Zero Launch Angle

Projectile motion where an object is launched horizontally with no initial vertical velocity.

General Launch Angle

The angle at which a projectile is launched, influencing its range and trajectory.

Independence of Motion

The principle that horizontal and vertical motions of a projectile are independent of each other.

Velocity Components

The horizontal (Vx) and vertical (Vy) parts of a velocity vector, often analyzed separately in kinematics.

Acceleration due to Gravity (g)

The acceleration experienced by an object due to Earth's gravitational pull, approximately 9.81 m/s².

Range (R)

The horizontal distance a projectile travels before hitting the ground.

Parabolic Path

The curved trajectory that a projectile follows when it is influenced by gravity.

Degree of Freedom

The number of independent movements that an object can make, often described in terms of dimensions in motion.

Initial Velocity (Vo)

The starting speed of an object in motion, before any external forces act on it.

Constant Acceleration

A steady increase or decrease in velocity of an object, often used in motion equations.

Time of Flight (t)

The total time a projectile is in the air during its motion.

Vertical Motion Equation

Mathematical formulations that describe displacement and velocity in vertical motion, influenced by gravity.

Horizontal Motion Equation

Mathematical formulations that describe displacement and velocity in horizontal motion at constant speed.

Hang Time

The total duration a projectile is in the air, especially for sports like basketball or jumping.

Free Fall

Motion under the influence of gravity alone, typically without air resistance.

Apex

The highest point of a projectile's trajectory.

Trajectory

The path followed by a projectile moving through space.

Velocity

The speed of an object in a given direction.

Displacement (d)

The overall change in position of an object; the straight-line distance from the initial to final position.

Vector

A quantity that has both magnitude and direction, such as velocity or force.

Magnitude

The size or quantity of a vector, without regard to its direction.

Direction

The course along which something moves, often indicated by an angle in kinematics.