What is the net torque on the pulley about the axle

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SUMMARY

The net torque on the pulley about the axle can be calculated using the formula Torque = r(Ft), where Ft is the force applied perpendicular to the radius. Given the tensions T1 = 18N and T2 = 34N, the torques must be calculated individually, considering their directions: clockwise (CW) or counterclockwise (CCW). The angle between the force and the radius is 90 degrees, simplifying the calculation to Torque = force x radius.

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  • Familiarity with the concepts of clockwise and counterclockwise rotation
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  • Calculate the individual torques for T1 and T2 using the formula Torque = r(Ft)
  • Explore the effects of varying angles on torque calculations
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Homework Statement



What is the net torque on the pulley about the axle if T1 = 18N and T2 = 34N?
http://i241.photobucket.com/albums/ff4/alg5045/p13-11.gif

Homework Equations





The Attempt at a Solution



Torque is really confusing me. I have no ideas as to how to start this problem.
 
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You're going to have to show some work, but to "push" you along... could you get started if there were only 1 force?
 
I know that torque = r(Ft), but I don't know if that's the right equation to use.
 
I'm guessing that Ft is the force that is perpendicular to the radius. Is that what you mean? If so, that is the right equation.

To give a longer answer than you might want,
Torque = force x radius x sine of the angle between the force and the radius.
In many cases, the angle is 90 degrees (it certainly is in your picture) and sin(90) = 1, so torque = force x radius in those cases.

So, now can you calculate the two torques, ONE AT A TIME, including whether it goes clockwise (CW) or counterclockwise (CCW)?
 
I figured it out before looking at your last post. Thanks though!
 

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