Graphing a rotational spring's constant

AI Thread Summary
To find the elastic potential energy in a mousetrap spring, it's suggested to graph the spring's constant by measuring torque on the y-axis and using either degrees or radians for the x-axis. However, using radians is recommended for simplicity in integration. The force should be measured from the cross arm of the mousetrap for accuracy. One participant has already completed the graph using degrees and calculated the stored energy as 100J. The discussion emphasizes the importance of self-direction in the project.
Ry122
Messages
563
Reaction score
2
Hi
Im trying to find the elastic potential energy stored in a mousetrap spring. I plan on doing this by graphing the spring's constant then integrating the function.
I just wanted to know what i should be measuring with the x-axis.
In normal springs the force is on the y-axis and the compression of the spring (cm) is on the x-axis.
I know it's either going to be degrees or radians (from 0 to 180) I am just not sure which one.
 
Physics news on Phys.org
either one you like.
 
would it be ok to graph the torque on the y-axis?
If not at what length should i measure the force from on the lever arm?
 
If you are going to get a function of the angle and then integrate, it would be simpler to use radians rather than angles. (The integral formula for a trig function in terms of degrees is more complicated than if it is in terms of radians.)

As for measuring the force, I would recommend attaching the scale to the cross arm of the mousetrap.
 
I've already graphed it using degrees. I just found the definite integral of the function. The stored energy was 100J
Was I supposed to do it some other way?
 
do it? do what? you have proposed this project for yourself, apparently. so the only person telling you what to do is yourself.
 
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