Question

The figure below shows two masses m1=4.6 kg and m2=2.9 kg connected to separate ropes which attach to the perimeter of a uniform disk of mass M=6.5 kg and radius R (not required in answer). If the system is released from rest what is the tension T1? (use picture, but answer typed question)

The figure below shows two masses m1=4.2 kg and m2=2.0 kg connected to separate ropes which attach to the perimeter of a uniform disk of mass M=6.1 kg and radius R (not required in answer). The tensions are unknowns in the problem. What is the magnitude of the (linear) acceleration of m2? R T T2 mi m2

Answer 1

the answer is negative that means we have assumed the mass m2 is coming down but actually it is not..it is going up with an acceleration of 2.33m/s^2...

The linear acceleration both mass will be same say it is a. R Ta T a a M. la for mass m, -O m, a Tirmig= for mass ma, 11 . mga mag- Tg for disc T= I a T= torque about centre, [= (T2-T) R (T2-T) R = 1/2 mR? & Ta-Ti = m R. ( 13 ) a R. e / 110 Tg-Ti= ma Add 0 4 from (Ti -Ta} +(my-milga(mi + mela (m2. m.) g = (m. tma) a ma t 2 - Gul 2 at (2-4.2) g= (2+4.2) a = 6.29 9-25a =-2.2g

thanks and hit like if u understand..