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fundoo
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Homework Statement
A uniform plate of mass m is suspended in the way shown. determine immediately after the connection at B has been released ;:
A) angular aceleration of plate
B) acceleration of its centre of mass
Homework Equations
before b is detached
t1 + t2 = mg (Linear equillibrium)
t1 x c/2 = t2 x c/2 (rotational eqb)
so t1 = t2 = mg/2
The Attempt at a Solution
immediately after B is opened ::
axis of rotation thru A. for Torque of mg = mg x c/2 ....1
also torque = Ia = moment of intertia x angular acceleration = (1/2 x m(c2 + c2/4) + 5mc2/4) x a
so 'a' = 1.2g/c
but that is not the answer.If you could please explain the Theory Involved and a general approach to solve the questions, i would be very thankful.