Projectile Motion Lets Go Skydiving Principles Of Engineering

Projectile Motion Let’s Go Skydiving! Principles Of Engineering © 2012 Project Lead The Way, Inc.

Speed is the distance traveled per unit time. Velocity is an object's speed and direction of motion. Acceleration is a change in velocity over a certain period of time.

Gravity tends to pull all objects toward the center of the earth. Gravitational Acceleration is the constant describing the acceleration of any object falling toward the earth. -9. 8 m/sec 2 -32 ft/sec 2

0 Seconds Acceleration: 32 ft/sec Velocity: 0 ft/sec

1 Second Acceleration: 32 ft/sec Velocity: 32 ft/sec

2 Seconds Acceleration: 32 ft/sec Velocity: 64 ft/sec

3 Seconds Acceleration: 32 ft/sec Velocity: 96 ft/sec

4 Seconds Acceleration: 32 ft/sec Velocity: 128 ft/sec

5 Seconds Acceleration: 32 ft/sec Velocity: 160 ft/sec

6 Seconds Acceleration: 32 ft/sec Velocity: 192 ft/sec

A projectile is any moving object upon which the only active force is gravity. Gravity pulls all projectiles toward the center of the earth at the same rate.

Firing Angle (θ) is measured in degrees. It is the angle at which the projectile left the cannon. Initial Velocity (Vi) is the angular speed of a projectile at the start of its flight.

4 Seconds 0 ft/sec 3 Seconds 32 ft/sec 5 Seconds 32 ft/sec 2 Seconds 64 ft/sec 6 Seconds 64 ft/sec 1 Second 96 ft/sec 7 Seconds 96 ft/sec 128 ft/sec 8 Seconds 128 ft/sec 0 Seconds Initial Velocity (Vi)

4 Sec. 3 Sec. 2 Sec. 1 Sec. 0 Sec. Constant Horizontal Velocity

Constant Horizontal Velocity 4 Sec. 3 Sec. 2 Sec. 1 Sec. 0 Sec. Gravitational Acceleration 32 ft/sec 2