Solve Torque & Equilibrium Homework

In summary, torque is a measure of turning force on an object and is calculated by multiplying the applied force by the distance from the pivot point. The equilibrium of an object is determined when the sum of all forces and torques acting on it is equal to zero, indicating no movement or rotation. There is a difference between static and dynamic equilibrium, with static being when an object is at rest and in balance, and dynamic being when an object is moving at a constant speed. To solve torque and equilibrium problems, a free-body diagram is drawn to identify all forces, and equations are used to set up and solve the problem. Real-life applications of torque and equilibrium can be found in engineering, physics, and biomechanics, such as opening a
  • #1
tyerra123
1
0

Homework Statement



A meter stick with a mass of 235 g is supported horizontally by two vertical strings, one at the 0 cm mark and the other at the 90 cm mark

Homework Equations



t=r F sin θ

The Attempt at a Solution



F1=the first string at zero
F2=the second string

F1+F2-235=0

(F1x0)+(F2x90)-(235)=0
 
Physics news on Phys.org
  • #2
tyerra123 said:
F1+F2-235=0
Careful: 235 is the mass (in grams), not the weight.

(F1x0)+(F2x90)-(235)=0
Same problem as above plus one more: Where does the weight of the stick act?
 

1. What is torque and how is it calculated?

Torque is a measure of the turning force on an object. It is calculated by multiplying the force applied to an object by the distance from the pivot point to the point where the force is applied.

2. How do you determine the equilibrium of an object?

An object is in equilibrium when the sum of all the forces acting on it is equal to zero and the sum of all the torques acting on it is also equal to zero. This means that the object is not moving or rotating.

3. What is the difference between static equilibrium and dynamic equilibrium?

Static equilibrium refers to when an object is at rest and in balance, while dynamic equilibrium refers to when an object is moving at a constant speed in a straight line.

4. How do you solve torque and equilibrium problems?

To solve torque and equilibrium problems, you first need to draw a free-body diagram to identify all the forces acting on the object. Then, use the equations for torque and equilibrium to set up and solve the problem.

5. What are some real-life applications of torque and equilibrium?

Torque and equilibrium are important concepts in many fields, including engineering, physics, and biomechanics. Some real-life applications include using torque to open a door, balancing a seesaw, and designing structures that can withstand external forces and maintain equilibrium.

Similar threads

Replies
6
Views
771
  • Introductory Physics Homework Help
Replies
6
Views
1K
  • Introductory Physics Homework Help
Replies
7
Views
2K
  • Introductory Physics Homework Help
Replies
1
Views
1K
  • Introductory Physics Homework Help
Replies
17
Views
2K
  • Introductory Physics Homework Help
Replies
3
Views
11K
  • Advanced Physics Homework Help
Replies
6
Views
2K
  • Advanced Physics Homework Help
Replies
3
Views
3K
  • Introductory Physics Homework Help
Replies
5
Views
3K
  • Introductory Physics Homework Help
Replies
5
Views
1K
Back
Top