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akash kashyp Grade: Upto college level
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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

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. We are all IITians and here to help you in your IIT JEE preparation. All the best. Regards,Askiitians ExpertsBadiuddin
```
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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