MHB How to Prove the Ratio of Radii and Angular Speeds of Two Connected Pulleys?

  • Thread starter Thread starter urekmazino
  • Start date Start date
  • Tags Tags
    Pulleys
urekmazino
Messages
3
Reaction score
0
Hello there, i need some help on my homework. there's no given numbers that's why it's hard for me to answer this one.

Two pulleys with radii r1 and r2 rotate at angular speeds of w1 and w2. if the pulleys are connected by a belt, show that r1/r2=w2/w1
 
Mathematics news on Phys.org
Use the fact that the length of the belt moved past each pulley in any period of time is the same for both pulleys.
 

Thread 'What Exactly is Dirac’s Delta Function? - Insight'

Insights auto threads is broken atm, so I'm manually creating these for new Insight articles. In Dirac’s Principles of Quantum Mechanics published in 1930 he introduced a “convenient notation” he referred to as a “delta function” which he treated as a continuum analog to the discrete Kronecker delta. The Kronecker delta is simply the indexed components of the identity operator in matrix algebra Source: https://www.physicsforums.com/insights/what-exactly-is-diracs-delta-function/ by...
View full post »

Thread 'Fermat's Last Theorem'

Fermat's Last Theorem has long been one of the most famous mathematical problems, and is now one of the most famous theorems. It simply states that the equation $$ a^n+b^n=c^n $$ has no solutions with positive integers if ##n>2.## It was named after Pierre de Fermat (1607-1665). The problem itself stems from the book Arithmetica by Diophantus of Alexandria. It gained popularity because Fermat noted in his copy "Cubum autem in duos cubos, aut quadratoquadratum in duos quadratoquadratos, et...
View full post »

Thread 'Useless continued fraction for 1'

I'm interested to know whether the equation $$1 = 2 - \frac{1}{2 - \frac{1}{2 - \cdots}}$$ is true or not. It can be shown easily that if the continued fraction converges, it cannot converge to anything else than 1. It seems that if the continued fraction converges, the convergence is very slow. The apparent slowness of the convergence makes it difficult to estimate the presence of true convergence numerically. At the moment I don't know whether this converges or not.
View full post »

Similar threads

MHB Angular speed of 2 pulleys on a belt
Replies
2
Views
7K
MHB How can I calculate the union of two rotated rectangles using an algorithm?
Replies
8
Views
5K
MHB Angular speed of 2 pulleys on a belt
Replies
2
Views
14K
Stepped Pulley: Angular and Linear Acceleration
Replies
2
Views
4K
Two pulleys and two masses on a slope
Replies
2
Views
2K
Two Identical Pendulums Connected by a Light Spring
Replies
3
Views
2K
Angular velocity of cylinders after slipping over each other
Replies
2
Views
2K
Detecting the point of collision between a rotating point and a rotating line.
Replies
2
Views
3K
Angular speed calculation after an inelastic collision
Replies
20
Views
3K
How Do You Calculate the Angular Motion of a Pulley System?
Replies
15
Views
2K

Hot Threads

Recent Insights

Back
Top