Formulating equation to compare forces

In summary, the conversation discusses a problem involving two balls connected by a string, with one ball spinning in a circle on a table and the other hanging. The objective is to find the equation for this scenario. The conversation mentions the Force of the hanging ball and considers using centripetal force or torque to compare it to the force of the second ball. A helpful resource is also provided regarding centrifugal force. The conversation also suggests considering the tension in the string as a factor.
  • #1
Barium
1
0

Homework Statement


We have two balls connected by a string. Let's assume string has no mass. One ball is on the table, spinning in circle at a constant speed, connected by string to a hole with another ball, hanging.
TtEjK
Here is picture. https://imgur.com/a/TtEjK

Homework Equations


Finding equation is the problem here.

The Attempt at a Solution


Obviously Force of ball hanging is F=m1*g
But how do I compare that to force of second ball?
I thought about comparing it to centripetal force, or to use torque, however torque unit (Nm) cannot be compared to (N), or at least I don't know about it.
 
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  • #3
Barium said:
how do I compare that to force of second ball?
Think about the tension in the string. Can that be more at one end than the other?
 

What is the formula for calculating force?

The formula for calculating force is F = ma, where F represents force, m represents mass, and a represents acceleration. This formula is derived from Newton's second law of motion.

How do you compare forces using equations?

To compare forces using equations, you can use either the formula F = ma or the formula F = kx, where k is the spring constant and x is the displacement. These equations can be used to calculate the magnitude and direction of forces acting on an object.

Can you compare forces of different types using the same equation?

No, it is not always possible to compare forces of different types using the same equation. For example, the equation F = ma is used to compare gravitational forces, while the equation F = kx is used to compare spring forces. Each type of force has its own specific equation that must be used for accurate comparison.

How do you determine the net force when multiple forces are acting on an object?

To determine the net force when multiple forces are acting on an object, you must first calculate the individual forces using their respective equations. Then, you can use vector addition to find the resultant force, which is the net force acting on the object.

What are some real-life applications of comparing forces using equations?

There are many real-life applications of comparing forces using equations, such as calculating the force required to lift an object, determining the force needed to accelerate a vehicle, and analyzing the forces acting on structures during construction. This information can also be used to design and improve various technologies, such as airplanes and cars.

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