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Searching for ## Projectiles

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Physics

Learners investigate the effects of initial speed and height on range and duration of projectile flight of an object that is launched horizontally.

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After completing this tutorial, you will be able to complete the following:

- Describe the starting altitude as directly proportional to the maximum vertical displacement for a projectile that was launched horizontally.
- Describe that the initial horizontal velocity has no effect on the duration of flight for a projectile that was launched horizontally.
- Explain that the vertical motion of a projectile that was launched horizontally is the same as that of an object in free fall.
- Describe the starting altitude as directly proportional to the final horizontal displacement for a projectile that was launched horizontally.
- Describe the initial horizontal velocity as directly proportional to the final horizontal displacement for a projectile that was launched horizontally.

Graphing projectile motion can deepen conceptual and mathematical understanding. Projectiles are examples of two-dimensional motion, with horizontal and vertical components and, therefore, x-axis components and y-axis components, respectively. Studying projectile motion may involve investigating the relationships between gravitational acceleration, initial velocity, and angle of launch. A projectile launched at an angle follows a parabolic trajectory. Gravity and air resistance affects the trajectory of these projectiles. This Activity Object focuses on projectiles launched horizontally, such as a ball rolling off a table or a car driving off a cliff.

Approximate Time | 20 Minutes |

Pre-requisite Concepts | acceleration, displacement, motion-graphs, position, projectile motion, velocity |

Course | Physics |

Type of Tutorial | Concept Development |

Key Vocabulary | acceleration, constant acceleration, direction of motion |