Vehicle: Force - Velocity Question

AI Thread Summary
Determining a vehicle's speed based on the spin and weight factors of another vehicle is complex but can be approached using physics principles. The discussion revolves around a collision involving a 2004 Ford Explorer and a 2000 Ford Taurus, where the Explorer was nearly stationary and spun 360 degrees after impact. The individual suspects the Taurus was traveling over 45 mph, as the force required to spin a heavier vehicle suggests significant speed. The absence of skid marks at the accident scene further implies the Taurus did not brake, reinforcing the belief of excessive speed. The inquiry seeks formulas or methods to estimate the Taurus's speed to aid in a pending court case.
Ford Explorer
Messages
3
Reaction score
0
I understand that these forums probably get flooded with people trying to beat pending cases against them, and I was hoping that I could use some of your brains to help solve a question that has been bothering me. I've never actually taken physics, so any help I could get in this area, could greatly help my family.

Is there a way to determine a vehicle's speed based upon other vehicle's spin and weight factors?

I was in a 2004 Ford Explorer (Gross weight: 5,880lbs. Curb weight: 4,463lbs.) waiting to turn LEFT onto a street with a 35-45mph roadway. When I negotiated the turn and felt I had enough time to clear traffic and begin traveling on that road, I was quickly slammed by a 2000 Ford Taurus (Curb weight: 1,522lbs.).

My Ford Explorer was at a near dead stop; maybe 5mph at the beginning of the turn.

My vehicle was slammed in the front right corner and spun OVER 360 degrees (counter clockwise) The impact damage into my vehicle was over one foot deep [though probably irrelevant].

Myself and others have collective reason to believe that the TAURUS (car A) was traveling at a speed that exceeded 45mph in order to spin such a heavy vehicle a full 360 degrees.

Is there a way to figure out an estimated speed for the Taurus based upon the fact that his speed was all that matters?

Is it possible for a vehicle weighing nearly a third of the other vehicle's weight to thrust the latter object into a full spin at only 35-45mph?

I've been in a few accidents, (thus far, none have been my fault) and never have I felt such an incredible amount of force at such a 'low' speed.

If any other information is needed in helping solve this mystery, please do not hesitate to contact me.

One of you could greatly help the outcome of this court-case.

Please advise.

Thank you in advance.
 
Physics news on Phys.org
Also note, there were no skid marks at the scene of the accident.
The police stated that no 'recreation of accident' could be assessed without skid marks.
This also leads me to believe that he was traveling at a speed well beyond the legal limit as no reaction was made on his part.
 
Bump.

Any formulas or information at all would be greatly appreciated.
 
The rope is tied into the person (the load of 200 pounds) and the rope goes up from the person to a fixed pulley and back down to his hands. He hauls the rope to suspend himself in the air. What is the mechanical advantage of the system? The person will indeed only have to lift half of his body weight (roughly 100 pounds) because he now lessened the load by that same amount. This APPEARS to be a 2:1 because he can hold himself with half the force, but my question is: is that mechanical...
Hello everyone, Consider the problem in which a car is told to travel at 30 km/h for L kilometers and then at 60 km/h for another L kilometers. Next, you are asked to determine the average speed. My question is: although we know that the average speed in this case is the harmonic mean of the two speeds, is it also possible to state that the average speed over this 2L-kilometer stretch can be obtained as a weighted average of the two speeds? Best regards, DaTario
Some physics textbook writer told me that Newton's first law applies only on bodies that feel no interactions at all. He said that if a body is on rest or moves in constant velocity, there is no external force acting on it. But I have heard another form of the law that says the net force acting on a body must be zero. This means there is interactions involved after all. So which one is correct?
Back
Top