Wk 7 - Angular Kinetics Flashcards
1
Q
moment of inertia (I) =
A
I = mr^2
2
Q
Symbol for moment of inertia is ….?
A
I
3
Q
linear momentum =
A
= mv
4
Q
Angular momentum (H) =
A
H = Iω or H = mk^2ω
5
Q
no ang vel in a body = no ____ _____
A
no ang momentum
6
Q
Angular impulse =
A
T x t
7
Q
Angular work =
A
T Δθ (change in ang distance)
8
Q
KE =
A
1/2 mv^2
9
Q
RKE (rotational) =
A
1/2 I ω^2
10
Q
Ang power =
A
Tω
11
Q
+ve mm action = _____ action
A
concentric
12
Q
-ve mm action = ______ action
A
eccentric
13
Q
What laws of motion are linear? (5)
A
- mass
- force
- momentum
- impulse
- acc
14
Q
What laws of motion are angular? (5)
A
- moment of inertia (I)
- torque
- ang momentum (H)
- ang impulse (Tt)
- ang acc
15
Q
Ang momentum is ____ with the ABSENCE of external torque
A
constant (cant take away ang momentum in air)
