Tension from string upon a rock

1. The problem statement, all variables and given/known data
Two 3 kg masses are attached to a string at r1=.5m and r2=1.5m from where the string is held in your hand. You swing them around together at 2 revolutions per second, each of them. The tension holding mass 2 (the distant part of the string) is what fraction of the tension near your hand?


2. Relevant equations

No Idea.

3. The attempt at a solution
No idea how to figure this problem out.
 

LowlyPion

Homework Helper
3,055
4
Welcome to PF.

Are the blocks tied together in some way?

Like head to tail?
 
Thanks.

That is all the information I received on the question.
A hint that was given was:[Hint: you can work in proportions without having to numerically solve for either of the centripetal forces required on the two masses]
 

LowlyPion

Homework Helper
3,055
4
I read it more carefully. Apparently it is tied to the same string at each of the 2 radii.

What is the force of a single mass at some radius rotating in a circle?
 

The Physics Forums Way

We Value Quality
• Topics based on mainstream science
• Proper English grammar and spelling
We Value Civility
• Positive and compassionate attitudes
• Patience while debating
We Value Productivity
• Disciplined to remain on-topic
• Recognition of own weaknesses
• Solo and co-op problem solving
Top