Exam 2 - 304

Linear Distance

Total path length traveled, measured in meters or kilometers.

Displacement

Straight-line distance from start to end, including direction.

Speed

Rate of covering distance (distance per unit time).

Pace

Time taken to cover a unit of distance (e.g., minutes per km).

Velocity

Rate of change of position, including direction.

Acceleration

Rate of change of velocity over time.

Angular Distance

Total angle rotated, measured in degrees or radians.

Angular Displacement

Smallest angle between start and end positions, with direction.

Angular Speed

Rate of rotation (angle per unit time).

Angular Velocity

Rate of change of angular displacement, with direction.

Angular Acceleration

Rate of change of angular velocity over time.

Relationships Between Linear and Angular Motion

Connection between rotation and straight-line motion (v=rω).

Kinematics of Projectile Motion

Study of motion of objects launched into the air under gravity.

Factors That Influence Projectile Motion

Initial speed, launch angle, air resistance, and gravity.

Optimal Conditions for Projectiles

45° launch angle for maximum range (no air resistance).

Horizontal and Vertical Components

Breakdown of motion into horizontal (constant) and vertical (accelerated) parts.

Pythagorean Theorem

In a right triangle, a²+b²=c².

SOHCAHTOA

Sine = opposite/hypotenuse, cosine = adjacent/hypotenuse, tangent = opposite/adjacent.

Vector Composition

Combining vectors to produce a resultant vector.

Vector Resolution

Breaking a vector into horizontal and vertical components.

Tip to Tail Method

Adding vectors by placing the tail of one at the tip of another.