Chapter 6: Projectiles Flashcards
1
Q
Horizontal motion formula
A
S = vt
2
Q
The horizontal motion of a projectile is modelled as having….
A
constant velocity (a=0)
3
Q
The vertical motion of a projectile is modelled as having….
A
a constant acceleration due to gravity (a=g)
4
Q
Vertical motion formula
A
SUVAT (Usually S = ut + 1/2 at^2)
5
Q
Ux =
A
u x cosß
6
Q
Uy =
A
u x sinß (sometimes -u x sinß if going downards)
7
Q
Steps to tackle projectiles questions:
A
- Draw Diagram
- If angle split up horizontal and vertical velocity
- Find Horizontal component s = vt
- Find Vertical component suvat
- If needed simultaneous equation
8
Q
Usual Limitations for projectile models:
A
- Used gravity as rounded
- wind effects
- not modelled as a particle
- ball dynamics
- air resistance / rotational forces
9
Q
When finding a projection remember..
A
The horizontal component is constant
10
Q
When finding the greatest height…
A
Let v = 0, for vertical component
11
Q
If Collide…
A
vertical velocity must be constant throughout
