Biomechanics Equations Flashcards
Displacement Equation
DISPLACEMENT = FINAL POSITION – INITIAL POSITION
Angular displacement
DISPLACEMENT = FINAL POSITION – INITIAL POSITION
Measured in degrees
1 rev = 360
2pi radian = 1 rev
Velocity Equation
VELOCITY = CHANGE IN DISPLACEMENT ÷ TIME
Angular Velocity equation
Overtime
ANGULAR VELOCITY = ANGULAR DISPLACEMENT / TIME
ω = Δθ / t
Acceleration Equation
ACCELERATION (m/s2) = CHANGE IN VELOCITY ÷ TIME TAKEN
Angular Acceleration equation
Δωt
ANGULAR ACCELERATION = CHANGE IN ANGULAR VELOCITY / TIME
α = Δω / t
Weight Equation
WEIGHT = MASS X ACCELERATION DUE TO GRAVITY (9.81)
Force Equation
Force = Mass * Acceleration
Newtons law of acceleration
Moment Equation
MOMENT = FORCE X PERPENDICULAR DISTANCE
The distance away from the point
Momentum Equation
Envy
MOMENTUM = MASS X VELCOCITY
Moment of Inertia Equation
I read Manga
I = moment of inertia (kg m2 )
m = mass (kg)
r = radius from axis of rotation (m)
Impulse Equation
Feet
IMPULSE (Ns) = FORCE (N) x TIME (S)
Angular Momentum Equation
Hiw
H = Angular Momentum (kg m2 /s)
I = Moment of inertia (kg m2 )
ω = Angular Velocity (rad/s)
Aperature Equation
𝒂𝒑𝒆𝒓𝒕𝒖𝒓𝒆 = 𝑓𝑜𝑐𝑎𝑙 𝑙𝑒𝑛𝑔𝑡ℎ / 𝑑𝑖𝑎𝑚𝑒𝑡𝑒𝑟 𝑜𝑓 ℎ𝑜𝑙e
Rate of Force Development Equation
RATE OF FORCE DEVELOPMENT = CHANGE IN FORCE ÷ TIME
Velocity equation
SUVAT
v = u + at
v 2 = u2 + 2as
S: displacement
DISPLACEMENT = FINAL POSITION – INITIAL
U: initial velocity
V: final velocity
A: acceleration
Force/mass
T: change in time
Displacement equations
s = ut + ½at2
s = ½(u + v)t
S: displacement
DISPLACEMENT = FINAL POSITION – INITIAL
U: initial velocity
V: final velocity
A: acceleration
Force/mass
T: change in time
Coefficient of Friciton equation
μ = F/N
F is the frictional force and N is the normal force.
FDrag equation
FDRAG = 0.5 p vª CDRAG
p = density of the fluid
CD = drag coefficient
v = relative velocity
A = surface
