biomech exam 2 equations

  1. torque
    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
  2. momentum
    M=mv

    quantity of motion
  3. linear velocity
    v=rw
  4. angular velocity
    ω=v/r

    ω=θ2-θ1/Δt
  5. who wins collision equation (momentum of both objects is given.. which direction wins?)
    v=(m1v1+m2v2)/m1+m2


    or think of it as v=(M1+M2)/m1+m2
  6. what do you to for degrees to radians
    divide
  7. what do you do from radians to degrees
    multiply
  8. work
    W=Fd

    creating force over distance
  9. power
    P=W/Δt or P=Fd/Δt

    work over time
  10. kg to newton conversion
    1kg=9.8N
  11. Impulse
    Ft=ΔM or Ft=mv2-mv1

    change in momentum
  12. angular momentum
    H=Iω

    quantity of angular motion
  13. Inertia
    I=mr2 or I=Σmr2

    sometimes r is replaced with k 

    resistance to motion
  14. Φ
    angular distance
  15. θ
    angular displacement
  16. α (alpha-fishy)
    angular acceleration
  17. ω
    angular velocity
  18. σ
    angular speed
  19. t
    time
  20. T
    torque
  21. v
    linear velocity
  22. d
    distance/displacement
  23. RF
    reactive force
  24. R
    resistance
  25. F
    force
  26. Fm
    Force of maximum static friction
  27. Fk
    Force of kinetic friction
  28. μs
    static friction
  29. μk
    kinetic friction
  30. amount of force for maximal static friction
    FmsR
  31. amount of force for kinetic friction
    FkkR
  32. force
    F=ma
  33. angular acceleration
    α=ω2-ω1/Δt

    or

    α=Δω/Δt
  34. angular impulse
    Tt=Iw2-Iw1

    or Tt=ΔH

    change in angular momentum
  35. I
    inertia
  36. H
    angular momentum
Author
miss_bayley
ID
325792
Card Set
biomech exam 2 equations
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Updated