Biomechanics Equations

Question 1

Displacement Equation

Answer 1

DISPLACEMENT = FINAL POSITION – INITIAL POSITION

Question 2

Angular displacement

Answer 2

DISPLACEMENT = FINAL POSITION – INITIAL POSITION

Measured in degrees

1 rev = 360

2pi radian = 1 rev

Question 3

Velocity Equation

Answer 3

VELOCITY = CHANGE IN DISPLACEMENT ÷ TIME

Question 4

Angular Velocity equation
Overtime

Answer 4

ANGULAR VELOCITY = ANGULAR DISPLACEMENT / TIME

ω = Δθ / t

Question 5

Acceleration Equation

Answer 5

ACCELERATION (m/s2) = CHANGE IN VELOCITY ÷ TIME TAKEN

Question 6

Angular Acceleration equation
Δωt

Answer 6

ANGULAR ACCELERATION = CHANGE IN ANGULAR VELOCITY / TIME

α = Δω / t

Question 7

Weight Equation

Answer 7

WEIGHT = MASS X ACCELERATION DUE TO GRAVITY (9.81)

Question 7

Force Equation

Answer 7

Force = Mass * Acceleration

Newtons law of acceleration

Question 8

Moment Equation

Answer 8

MOMENT = FORCE X PERPENDICULAR DISTANCE

The distance away from the point

Question 9

Momentum Equation

Envy

Answer 9

MOMENTUM = MASS X VELCOCITY

Question 10

Moment of Inertia Equation
I read Manga

Answer 10

I = moment of inertia (kg m2 )

m = mass (kg)

r = radius from axis of rotation (m)

Question 11

Impulse Equation

Feet

Answer 11

IMPULSE (Ns) = FORCE (N) x TIME (S)

Question 12

Angular Momentum Equation
Hiw

Answer 12

H = Angular Momentum (kg m2 /s)

I = Moment of inertia (kg m2 )

ω = Angular Velocity (rad/s)

Question 13

Aperature Equation

Answer 13

𝒂𝒑𝒆𝒓𝒕𝒖𝒓𝒆 = 𝑓𝑜𝑐𝑎𝑙 𝑙𝑒𝑛𝑔𝑡ℎ / 𝑑𝑖𝑎𝑚𝑒𝑡𝑒𝑟 𝑜𝑓 ℎ𝑜𝑙e

Question 13

Rate of Force Development Equation

Answer 13

RATE OF FORCE DEVELOPMENT = CHANGE IN FORCE ÷ TIME

Question 13

Velocity equation
SUVAT

Answer 13

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

Question 14

Displacement equations

Answer 14

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

Question 14

Coefficient of Friciton equation

Answer 14

μ = F/N

F is the frictional force and N is the normal force.

Question 15

FDrag equation

Answer 15

FDRAG = 0.5 p vª CDRAG

p = density of the fluid

CD = drag coefficient

v = relative velocity

A = surface