Balancing a shaft using mrL and mr vectors

[ridiculoid]

Homework Statement

Homework Equations

Trigonometry equations, p=m/v, A = pi * d^2 / 4

The Attempt at a Solution

i) mass calculated is 9.318kg at 150° from A

ii) diameter = 0.235m

I apologize for the messy working, I am just wondering if I have followed the correct procedure or not. The end diameter seems quite large, I may be misinterpreting the question though as the flywheel is initially large as well.

Any help would be greatly appreciated.

 

[haruspex]

I apologize for the messy working

Don't apologize, fix it. Likely no-one will make the effort to follow it as is.

Work it through purely algebraically. Assign variable names to the distances etc., not plugging in any numbers. I'll make an exception for the 120 degree angles. Take the trouble to type it in and quote any principles or standard equations you are using. Maybe there is some web link you could post for any unfamiliar with the topic.