biomech exam 2 equations

T=FD_┴

torque is force times moment arm

both the magnitude of the force and the length of the moment arm equally effect the outcome of torque

M=mv

quantity of motion

v=rw

ω=v/r

ω=θ2-θ1/Δt

v=(m1v1+m2v2)/m1+m2


or think of it as v=(M1+M2)/m1+m2

divide

multiply

W=Fd

creating force over distance

P=W/Δt or P=Fd/Δt

work over time

1kg=9.8N

Ft=ΔM or Ft=mv2-mv1

change in momentum

H=Iω

quantity of angular motion

I=mr² or I=Σmr²

sometimes r is replaced with k 

resistance to motion

angular distance

angular displacement

angular acceleration

angular velocity

angular speed

time

torque

linear velocity

distance/displacement

reactive force

resistance

force

Force of maximum static friction

Force of kinetic friction

static friction

kinetic friction

F_m=μ_sR

Fk=μkR

F=ma

α=ω2-ω1/Δt

or

α=Δω/Δt

Tt=Iw2-Iw1

or Tt=ΔH

change in angular momentum

inertia

angular momentum