2D Motion - Projectiles Flashcards
1
Q
What is the vertical (y) acceleration of a projectile?
A
9.8 (gravity)
2
Q
What is the horizontal (x) acceleration of a projectile?
A
0 (constant velocity)
3
Q
What two directions need to be kept separate in projectile motion problems?
A
x and y
4
Q
If you know vx and vy for a projectile, how do you determine v?
A
Pythagorean Theorem
5
Q
If you know v for a projectile, how do you find vx and vy?
A
Use trig and the angle to break it into components
6
Q
What is vy for a projectile at its highest point?
A
0 m/s
7
Q
What fraction of the total time does it take a projectile to reach its highest point?
A
Half
8
Q
What is the only equation for a projectile in the horizontal direction?
A
x = v*t
