How far apart are these two G's?
 

Any engineers or accident investigators on board?

There has to be a way to calculated the distance between the two vehicles in the attached picture... (the gap between the two - in feet)....

From my estimates, it appears to be about 2 feet. (ref. the g35 sedan is exactly 15.5 feet long, wheel base is 9.35 feet)

Pictures of car were taken from the same angle and from the same camera.
Actually there were two pictures, but I photoshopped them into one for better comparison.

The only items in the picture that I could measure if needed to use for comparison/reference are the two light reflections (squares) on the wall behind the car.

Any help would be appreciated.

Whats the point to this craziness????

A very simple one
 

A very simple point. To prove that our government wants our money while hiding behind the "safety" disguise and to prove that the photo radar/laser systems used in Maryland can and are sometimes giving innocent people tickets.

Here is the story behind it. Cruise control was set to 60mph, my GPS (TomTom) was showing 61mph, the warning sign a few feet prior to the photo radar was showing 60 mph, yet the photo radar system snapped two pictures of my car and the ticket in the mail says 67mph....................

BTW, even 66mph would not have triggered the device. only at 67mph is the system supposed to take pictures... and they got me at 67mph exactly, a little suspicious if you ask me, especially because of the numbers from my GPS, etc.

If I can figure out a way to calculate the distance between the vehicles, I can prove that there system doesn't work right and innocent people are getting tickets.

i think it would be difficult to calculate the distance between the two objects. But I came up with a idea take vL1 and vL2 You have to guess the length of it and they take the actual length (aL) of the car and then u will get an idea of the distance.. well not really.. nevermine.

If you could find out how far apart the holes in the wall are you could get a fairly accurate measurement of the distance travelled based on where your car's rear "frame" line intersects that row (see below). However, you can't calculate your speed without knowing the exact time interval between the two photos (mph = distance per time) and they probably won't tell you that.

^ What he said.

Actually they have told me the time, therefore, if I can calculate the distance then I could prove that they are wrong.

HAHA i had a ticket like this

The typical broken line on a US highway is 10 feet of paint with a gap of 30 feet in between them. If they are not 10 feet long for some reason they are supposed to keep the 1:3 ratio. A line is typically 4 to 6 inches wide.

in your initial position you were somewhere between the two line "30ft margin gap" so assuming you were somewhere between the 10ft line you can make a worse and best case senerio based on the time interval!

worse case would be a 40ft "impossible because of pic" and best case would be a 0-10 ft

my estimate is around 12ft distance in between the two frames
depending on the time tells u how fast you were driving

Also USE LINES they run parallel to motion of car the wall isnt certain the court does this!

get your wheelbase and measure it, scale it to the picture and see how far between the rear tire of the front car and the front tire of the rear car

Your estimate of around 12ft distance, can't be correct, as the car itself is 15.5 feet, and one can see that it moved at least one car length, plus there may be around 2' of gap between the two.

My best guess/estimate would be that the car moved a total of 17-18 feet.

It just hit me on the way home....

I thought that it was a federal law that all speed detection devices (i.e. radar & laser) must be re-calibrated once a year. You might check into that, contest the ticket and tell them you would like to see the calibration records for the unit that clocked your car at the said speeds.

There are ways around speed cameras........:BOUNCE:

OK, I'm not a math guy but here's an attempt anyway...

Miles per hour x 1.4666667 = feet per second
so
61mph = 89.466667 fps (1073.6 inches per second)
67mph = 98.266667 fps (1179.2 ips)
Now working backwards, if we say your car moved 17 ft (204 inches), the timing between the two shots is what counts, and it's a tiny difference.
At 61mph your car moves 17 ft in 0.19 seconds.
At 67mph your car moves 17 ft in 0.173 seconds.

How does that jive with what you know about the times? Are they accurate to two-hundredths of a second? If they say the shots are .25 seconds apart then you can say that proves you were only going slower than 50 mph...

looks fake

Interesting...


And the wonder why speed cameras are getting voted out of use around the country with the only opposition coming from the camera manufacturers....