- #1
Clara Chung
- 304
- 14
Homework Statement
A light string is passed over a pulley and two masses m1 and m2 are suspended from the two free ends. The pulley is a uniform circular disc of mass M. Find the linear acceleration of the two masses. Friction may be neglected.
Homework Equations
I through center of the disc = MR^2 /2
The answer is a= (m2-m1)g / (m1+m2+M/2)
The Attempt at a Solution
I drew 3 free body diagrams separately, and get T-m1g = m1a..(1)
m2g-T=m2a...(2)
1/2 MR^2 (a/R) = 2TR (2 tension acting both clockwise if I assume m2 is on the right hand side and it is heavier than m1) ...(3)
Plz point out what's wrong in each equation 1,2,3, thxxxx