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Force on car at speed

  1. Sep 13, 2009 #1
    Hello all,
    What I'm trying to figure out is how I would calculate the max. force on the lights so I can determine which electromechanics to use for a pan/tilt system.
    I know the bar will have 4 lights, but I haven't decided on which lights I'm going to use. I am hoping for an equation I could use to calculate the force on different size lights at highway speeds

    Thank you in advance,
  2. jcsd
  3. Sep 13, 2009 #2


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    What force are you talking about? The effect of wind speed over the car?
  4. Sep 13, 2009 #3
    Sorry, I was in a hurry typing that earlier.
    What I'm talking about is the force of wind on the lights. I'm wanting to calculate this, so I know how strong of an actuator I need to use.

    I'm going to be making something similar to but for a different truck and don't want to spend the $1700
    Last edited by a moderator: Sep 25, 2014
  5. Sep 14, 2009 #4


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    That would depend on many different variables, mainly the size and orientation of the lights themselves.
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