Centripetal force. Radius is not given. Find tension in each support

[osman ibn ali]

There is this problem that I have been trying to do but I just cannot understand how to approach it. I have been doing centripetal problems for hours so maybe I am just tired.
The thing is that I do not see an equation I can use to cancel out radius since the radius is not given.
I have uploaded a file containing a diagram
Help would be aprreciated. THANKS.

."In an amusement park ride a motor rotates two platforms with a period of 4.0 s in a vertical circle. The mass of platform 1 is 1200 kg and 2000 kg for platform 2. Find the tension in each support when the platforms are at the bottom as shown."

 

[haruspex]

When I open the doc I see text but no diagram. Can you describe it in words?

 

[osman ibn ali]

l
l Support A is 4.0m
l
------- Platform 1 is 800 kg
l
l
l Support B 3.0 m
l
l
--------- Platform 2 is 1000kg

 

[osman ibn ali]

A kind of visual diagram with the strings and platforms is shown above.

 

[SammyS]

Homework Statement

There is this problem that I have been trying to do but I just cannot understand how to approach it. I have been doing centripetal problems for hours so maybe I am just tired.
The thing is that I do not see an equation I can use to cancel out radius since the radius is not given.
I have uploaded a file containing a diagram
Help would be appreciated. THANKS.

."In an amusement park ride a motor rotates two platforms with a period of 4.0 s in a vertical circle. The mass of platform 1 is 1200 kg and 2000 kg for platform 2. Find the tension in each support when the platforms are at the bottom as shown."

Homework Equations

The Attempt at a Solution

Information is given that gives the two radii.

The circle each rotates in is in a vertical plane.