Mechanics equations Flashcards
1
Q
Work done =
A
Force * Distance
W.D = Fs
2
Q
acceleration =
A
a = (v² - u²) / 2s
3
Q
v² =
A
v² = u² +2as
4
Q
Kinetic Energy =
A
K.E = 1/2 mv²
5
Q
Force =
A
F=ma
6
Q
Power =
A
P = Fv
7
Q
Word done =
Using v
A
W.D = 1/2 mv² - 1/2 mu²
8
Q
Work done (K.E)
A
Work done = Increase in KE
9
Q
Potential Energy =
A
P.E = mgh
10
Q
Potential Energy =
Using v
A
mgh = 1/2 mv² - 1/2 mu² = P.E
11
Q
Conservation of momentum
A
mv = mv
12
Q
(Coefficient of restitution) e =
A
e = speed of separation / speed of impact
13
Q
Friction =
A
Fᵣ = μR (R = Reaction force)
14
Q
What is μ?
A
Coefficient of fiction
