Chapter 3 Extra Credit

2. The velocity stays constant throughout the projectile and stays independent of the vertical motion
3. the movement of a projectile across a horizontal plane due to some sort of force
7. the movement of an object in a vertical direction against the direction of gravity
10. the angle of a project's initial velocity that allows it to move in a horizontal direction
12. the study of motion in two directions, including projectile motion and circular motion
15. relating to y-axis and aligns from top to bottom
17. the distance moved by an object in a vertical direction as a result of initial vertical velocity and total time
19. when air-resistance is negligible, projectiles follow projectile trajectories
20. The acceleration acting on the object is caused by gravity and moves only in a vertical direction

1. an object thrown or launched into the air, moving under the influence of gravity alone
4. the resultant vector is the vector sum of two or more vectors
5. a type of projectile problem that determines how far someone can move and one in which the launch angle isn't always 0
6. the total horizontal and vertical displacements of a projectile over a distance
8. the total horizontal displacement travelled by a vertically launched projectile
9. the highest vertical position along a projectile's trajectory
11. relating to x-axis and at a right angle to the vertical
13. an object that is acted upon by forces at a constant velocity horizontally and moves vertically through gravity
14. the operation of adding two or more vectors together into a vector sum
16. a part of a two-dimensional vector in the given direction
18. the shape of a projectile that results from the horizontal component of the velocity while gravity accelerates the vertical component of velocity at -9.81 m/s^2