Bellringer What is the difference between the words vertical and horizontal? What does the word projectile mean? How is one dimensional (1D), two dimensional (2D), and three dimensional (3D) different?

What is Projectile Motion?

Projectile Motion Two-dimensional motion of an object Vertical Horizontal

Types of Projectile Motion Horizontal Motion of a ball rolling freely along a level surface Horizontal velocity is ALWAYS constant Vertical Motion of a freely falling object Force due to gravity Vertical component of velocity changes with time Parabolic Path traced by an object accelerating only in the vertical direction while moving at constant horizontal velocity

Examples of Projectile Motion Launching a Cannon ball

Equations X- Component Y- Component Vectors Note: g= 9.8 m/s2

Factors Affecting Projectile Motion What two factors would affect projectile motion? Angle Initial velocity Initial Velocity Angle

Range of a 2-D Projectile x y Range Definition: The RANGE of the projectile is how far it travels horizontally.

Maximum height of a projectile y Maximum Height Range The MAXIMUM HEIGHT of the projectile occurs when it stops moving upward.

Maximum height of a projectile y Maximum Height Range The angle and initial velocity affects the range and maximum height a projectile achieves.

Projectile Motion Formulas

EXIT TICKET A= ______ V= ______ A= ______ V= ______ V= ______ V= 30 m/s V= ______ A= ______ A= ______

Class Exercise An object is fired from the ground at 100 meters per second at an angle of 30 degrees with the horizontal Calculate the horizontal and vertical components of the initial velocity After 2.0 seconds, how far has the object traveled in the horizontal direction? How high is the object at this point?