Equation for torque of a cylinder, a hollow cylinder, and a sphere.

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SUMMARY

The equation for torque (T) is defined as T = Iα, where I represents the moment of inertia and α is the angular acceleration. For a solid cylinder, the moment of inertia is I = (1/2) m r²; for a hollow cylinder, it is I = m r²; and for a sphere, it is I = (2/5) m r². These equations are essential for calculating the torque of these shapes as they roll down an incline.

PREREQUISITES
  • Understanding of basic physics concepts such as torque and angular momentum.
  • Familiarity with the moment of inertia for different geometric shapes.
  • Knowledge of angular acceleration and its relationship to torque.
  • Basic algebra skills for manipulating equations.
NEXT STEPS
  • Study the moment of inertia for various shapes in detail.
  • Learn about the dynamics of rolling motion and its equations.
  • Explore the relationship between torque and angular momentum in depth.
  • Investigate real-world applications of torque in mechanical systems.
USEFUL FOR

Students studying physics, particularly those focusing on mechanics, as well as educators seeking to clarify concepts related to torque and rolling motion.

nlingraham
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Homework Statement



What is the equation for the torque of a cylinder, a hollow cylinder, and a sphere rolling down an incline?

Homework Equations



This is what I don't know

The Attempt at a Solution



I have no idea where to start.
 
Physics news on Phys.org
Torque is the rate of change of angular momentum

if angular momentum = Iω, that is torque then?
 
What is the equation for torque? Similarly to F = ma, the equation for torque is
T = I\alpha
 
Thanks, you guys are awesome
 

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