Calculating Net Torque for Disk in Diagram D

Click For Summary
SUMMARY

The discussion focuses on calculating the net torque for a disk in a physics problem, specifically regarding the forces applied to the disk as shown in Diagram D. The user initially believed that torque could be calculated simply by multiplying force (F0) by the radius (R), but this approach was incorrect. The key takeaway is that torque is a vector quantity, necessitating the specification of its direction, which can be determined using the right-hand rule to identify whether it is clockwise or counterclockwise.

PREREQUISITES
  • Understanding of torque as a vector quantity
  • Familiarity with the right-hand rule for determining torque direction
  • Basic knowledge of forces and their application on rigid bodies
  • Concept of rotational motion in physics
NEXT STEPS
  • Study the principles of torque calculation in rotational dynamics
  • Learn about the right-hand rule and its applications in physics
  • Explore the differences in torque calculations for various shapes, including disks and rods
  • Review examples of net torque calculations in physics problems
USEFUL FOR

This discussion is beneficial for physics students, educators, and anyone interested in understanding the principles of torque and rotational dynamics in mechanics.

nahanksh
Messages
38
Reaction score
0

Homework Statement


http://online.physics.uiuc.edu/cgi/courses/shell/common/showme.pl?courses/phys211/oldexams/exam3/sp08/fig10.gif

What's the net torques about the pivot, represented by the dot (•), in the diagram D. The solid arrows represent the magnitude and direction of the forces applied to the objects.


Homework Equations





The Attempt at a Solution



I thought it's just F0 multiplied by R but it turns out to be wrong..

Should something be considered if it's disk?
(Because i have seen only the cases of rod getting torques)

What's wrong in my thought?
Please help me out here.
 
Last edited by a moderator:
Physics news on Phys.org
Your magnitude of the torque is correct, but since Torque is a vector, you must also specify its direction. Is it clockwise or counterclockwise, (or, using by convention the right hand rule, pointing into the page or out of the page)?
 

Similar threads

Calculating Net Torque in a Rotating System
  • · Replies 22 ·
Replies
22
Views
4K
Finding the net torque about the axle?
  • · Replies 3 ·
Replies
3
Views
6K
Calculating Net Torque for an Inclined Wheel: A Problem in Applied Physics
  • · Replies 4 ·
Replies
4
Views
3K
Friction Torque and Lost Energy in Colliding Disks: Where Did it Go?
  • · Replies 5 ·
Replies
5
Views
2K
What is the direction of forces exerted on a plank by a wall in statics?
  • · Replies 5 ·
Replies
5
Views
3K
Torque Causing Angular Acceleration on a Uniform Disk
  • · Replies 7 ·
Replies
7
Views
8K
Rotational Kinematics - Angular velocity
  • · Replies 2 ·
Replies
2
Views
3K
What Causes the Net Torque on a Uniform Disk?
  • · Replies 4 ·
Replies
4
Views
9K
Rotational Kinematics of a spool of mass
  • · Replies 2 ·
Replies
2
Views
4K
Conservation of Angular Momentum problem
  • · Replies 2 ·
Replies
2
Views
2K