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akash kashyp Grade: Upto college level
        



















need confirmation


in arihant mec vol 2(d c pandey) ,rotational dynamics ,example 9.19,in explanation part 9.10)torque eqs applied(i.e f cross R) are incorrect right


eg 9.19 


the question is 


two masses m1,m2 are connected by massless sting over a solid cylinder(no thread slipping and no axle friction is absent) if m1(left side block ) and t1 is tension in left side part of string,m2(rigt block) t2 is tension in right part of string


the eqs given in book are 


t1-m1g=m1a


m2g-t2=m2a


(t2-t1)r=.5mr^2(a/r)(torque eq given in text) r is radius of cylinder and m is mass of cylinder










   




7 years ago

Answers : (2)

Badiuddin askIITians.ismu Expert
147 Points
										

Dear akash kashyp


Torge should be r X F .


all the given equation are correct.


in which equation  you have doubt  ,clearly post it here.


Please feel free to post as many doubts on our discussion forum as you can. If you find any question Difficult to understand - post it here and we will get you the answer and detailed solution very quickly.
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Regards,
Askiitians Experts
Badiuddin


7 years ago
akash kashyp
8 Points
										in the torque equation


torque due to t1 is clockwise and outwards the plane and torque due to t2 is anticlockwise is it not
7 years ago
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