How fast would a car be going to throw a 50lb object 38ft?

  • Thread starter Thread starter JReed
  • Start date Start date
  • Tags Tags
    Car
AI Thread Summary
Calculating the speed required for a car to throw a 50lb object 38 feet involves complex factors, including friction and the specifics of the impact. The discussion highlights that the answer is not straightforward due to variables like the materials involved, the weight of the car, and the dynamics of the collision. A simple formula is insufficient for an accurate estimate, as friction plays a crucial role in determining how far the object travels after impact. Ultimately, without precise parameters, the best response is that the required speed would be "some non-zero speed." The thread concludes that a satisfactory answer cannot be provided.
JReed
Messages
2
Reaction score
0
Looking for some calculations help, if someone wouldn't mind. I'm trying to figure out what simple formula I might use to estimate how fast a car would have to be going to throw a 50lb object 38 feet. All of the formulas I've found take into account other factors such as friction. I am just looking for the simplest formula I can find to determine a reasonable estimate.
Thanks in advance!
 
Physics news on Phys.org
Is this 38 feet horizontally, or on an angle? 38 feet before hitting the ground, or 38 feet after skidding?
 
Like, a car hits an object and the object lands/stops (so I guess including skidding?) 38 feet horizonally away from the point of impact.
 
Well, you'll definitely need to take friction in account for that calculation, becaue friction will be what stops the object. The answer will vary depending on the materials.
 
Unfortunately the question you're asking doesn't have the simple answer that you're looking for. Those factors like friction, weight of the car, amount of damage done to the car, amount of damage done to the object, height of impact... that you don't want to consider all matter. If they aren't specified, the answer will be "some non-zero speed".

As there is no satisfactory answer to the question, this thread is closed.
 
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