Solving the Forces on a Frictionless System

In summary, the conversation discusses a problem involving three blocks on a frictionless surface connected by massless strings, with known masses and a force acting on one of the blocks. The goal is to calculate the tension, T2, in one of the strings. The suggested solution involves labeling the forces on each block and using the net force equation to find the desired tension.
  • #1
CaptFormal
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0

Homework Statement



Three blocks on a frictionless surface are connected by massless strings, with M1 = 1.10 kg, M2 = 2.40 kg, and M3 = 3.60 kg. Due to the force F acting on M3, as shown, the system accelerates to the right. Given that T1 is 2.10 N, calculate T2

PhysicsBlocks.jpg



Homework Equations





The Attempt at a Solution



Not quite sure how to start this one. Any help would be greatly appreciated. Thanks.
 
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  • #2
Label all the forces acting on all three of the blocks. Then do the usual net force equation. See where this gets you.
 
  • #3
Yep, that makes sense and I got it right. Thanks for your help.
 

1. What is a frictionless system?

A frictionless system is a theoretical concept in physics where there is no resistance or friction present between objects. This means that no external forces are acting on the objects, allowing them to move without any hindrance.

2. How do you solve for the forces in a frictionless system?

To solve for the forces in a frictionless system, you can use Newton's laws of motion and the principles of vector addition. This involves breaking down all the external forces acting on the objects into their components and using equations to find the net force and acceleration of the system.

3. Why is solving for the forces important in a frictionless system?

Solving for the forces in a frictionless system is important because it allows us to understand the motion and behavior of objects without the interference of friction. This can help us make more accurate predictions and calculations in real-world scenarios where friction may be negligible.

4. What are some examples of frictionless systems?

Some examples of frictionless systems include a pendulum in a vacuum, planets orbiting around the sun, and a hockey puck sliding on ice. These are all situations where the effects of friction are minimal or nonexistent, allowing us to study the pure motion of objects.

5. What are the limitations of a frictionless system?

Although a frictionless system is a useful theoretical concept, it is important to note that it is not achievable in real life. In reality, there is always some level of friction present, no matter how small. This means that the solutions and calculations obtained from a frictionless system may not accurately reflect real-world scenarios.

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