1
Q
In projectiles, what are the two components of velocity?
A
Angle of projection and force
2
Q
How do you resolve horizontally with a projectile?
A
U x cosã
3
Q
How do you resolve vertically with a projectile?
A
U x sinã
4
Q
When is the greatest height of a projectile?
A
When velocity is 0
5
Q
What is the horizontal motion subject to in a projectile?
A
Constant velocity
So use speed = distance over time
6
Q
How will projection motion formulae be used in a question?
A
By deriving double angle formulae
7
Q
What is Sin(a+b)?
A
SinACosB + CosASinB
8
Q
What is Cos(a+b)?
A
CosACosB - SinASinB
9
Q
What is sin(A-B)?
A
SinACosB - CosASinB
10
Q
What is Cos(a-b)?
A
CosACosB + SinASinB
11
Q
What is Sin2A?
A
2SinACosA
12
Q
What is cos2A?
A
Cos^2A + Sin^2A
2Cos^2A - 1
1 - 2Sin^2A
13
Q
A
A-Level Mathematics - Mechanics
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