angular velocity of object after being subjected to torque

by serverxeon
Tags: angular, object, subjected, torque, velocity
 P: 98 In particular I am only looking at part c. I know the simpler approach is to use energy. But I am thinking if i can do an integration of all the torque throughout the process, and hence find the integration of the net angular acceleration and find the resultant change in angular velocity. But I have no idea how to do the mathematics. Can anyone show me how the mathematics is done?
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P: 25,474
hi serverxeon!
 Quote by serverxeon … if i can do an integration of all the torque throughout the process, and hence find the integration of the net angular acceleration and find the resultant change in angular velocity. But I have no idea how to do the mathematics. Can anyone show me how the mathematics is done?
τ = Iα …
torque (of the weight) = 1/3 ML2 d2θ/dt2
P: 98
 Quote by tiny-tim hi serverxeon! τ = Iα … torque (of the weight) = 1/3 ML2 d2θ/dt2
hey thanks for the help.

sorry but I still don't know how to go on from here!

could you elaborate a bit further!

In particular I was looking at using the 'infinitesimal' dτ or dα approach.

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P: 25,474

angular velocity of object after being subjected to torque

 Quote by serverxeon In particular I was looking at using the 'infinitesimal' dτ or dα approach.
there is no dτ or dα in this situation

use torque (of the weight) = 1/3 ML2 d2θ/dt2
what is the torque? (as a function of θ)

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