Centripetal and Tangencial Accelaration

AI Thread Summary
The discussion revolves around a physics problem involving a car with a mass of 500 kg on a circular track with a 50 m radius, where the velocity increases by 2 m/s. The participant seeks help with three parts of the problem: determining the angular position, calculating the angular velocity after one lap, and finding the time when centripetal acceleration equals tangential acceleration. The participant has calculated the angular position as a function of time and the angular velocity as 0.7 rad/s, which others confirm as correct. The main challenge lies in equating centripetal and tangential acceleration, with additional requests for resources on two-dimensional motion.
martcapt
Messages
2
Reaction score
0

Homework Statement


English is not my first language from the beginning I apologize for any mistakes in scientific terms, anyhow.
Car with 500kg.
No initial velocity, and from origin or the referential.
Circular track, 50m radius.
The module of the velocity increases in 2m/s


Homework Equations


I can't post the damn symbols for some reason but I believe this is a very simple problem.. Sorry


The Attempt at a Solution



Well there are three parts
Indication of the angular position
Indication of the angular velocity after a lap.
Indication of the time in witch the centripetal acceleration is the same as the tangential acceleration

The first two I'm pretty sure of the results it gave me 0.02t(squared) on the first and angular velocity=0.7rad/s on the second, if someone would be as so kind as checking this I would really apreciate it, but the problem in witch I'm having trouble is the third, this is the only thing I have done so far:

at=ac
2=v(squared)/r
v=10

sorry for bothering, but my teacher has the bad habit of giving exercises with no solution and I would really apreciate one for this one :)

Anyways so as to not create another thread if someone happens to know some condensed but thorough material in two dimensional motion, it would be great :)
thanks.
 
Physics news on Phys.org
You have to be a little clearer in stating the problem. I gather that the tangential acceleration is 2 m/sec^2. Is the first question: what is the angular position as a function of time? Is the second question: what is the angular velocity after one complete rotation ie through an angle of 2\pi radians? and is the third question: at what time will the centripetal acceleration be equal in magnitude to the tangential acceleration?

AM
 
Correct on all three.
Sorry,I'm not used to writing this stuff in text, and in english
 
Last edited:
martcapt said:
Correct on all three.
Then your answers to the first two questions are correct.

AM
 
Thread 'Voltmeter readings for this circuit with switches'
TL;DR Summary: I would like to know the voltmeter readings on the two resistors separately in the picture in the following cases , When one of the keys is closed When both of them are opened (Knowing that the battery has negligible internal resistance) My thoughts for the first case , one of them must be 12 volt while the other is 0 The second case we'll I think both voltmeter readings should be 12 volt since they are both parallel to the battery and they involve the key within what the...
Thread 'Struggling to make relation between elastic force and height'
Hello guys this is what I tried so far. I used the UTS to calculate the force it needs when the rope tears. My idea was to make a relationship/ function that would give me the force depending on height. Yeah i couldnt find a way to solve it. I also thought about how I could use hooks law (how it was given to me in my script) with the thought of instead of having two part of a rope id have one singular rope from the middle to the top where I could find the difference in height. But the...
Back
Top