Calculating Tension in a String: Two Masses on a Horizontal Surface

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SUMMARY

The discussion centers on calculating the tension in a string connecting two masses, specifically 2 kg and 3 kg, on a horizontal surface under a 10 N force. The calculated tension in the string is definitively 4 N. Participants emphasized the application of Newton's second law to both masses to derive the solution, clarifying that acceleration must be considered despite the absence of gravitational forces in this scenario.

PREREQUISITES
  • Understanding of Newton's second law of motion
  • Basic knowledge of tension in strings and forces
  • Concept of mass and acceleration
  • Familiarity with horizontal motion dynamics
NEXT STEPS
  • Study the application of Newton's second law in multi-body systems
  • Learn about tension calculations in various configurations, including pulleys
  • Explore the effects of friction in tension problems
  • Investigate the relationship between force, mass, and acceleration in horizontal motion
USEFUL FOR

Students in physics, particularly those studying mechanics, as well as educators seeking to clarify concepts related to tension and forces in horizontal motion.

Michael89
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Homework Statement


Two blocks of masses 2kg (a) and 3kg (b) rest on a smooth horizontal surface and are connected by a taut string of negligible mass. A force of 10 N is applied to the 3kg mass as shown in figure (below). Calculate the tension in the string between them.

The answer is 4N

http://www.noosahill09.com/images/upload1.jpg

Homework Equations


Friction has not been discussed yet, it is in the next chapter.


The Attempt at a Solution


I can figure out how to calculate the tension on a string of a pulley or the tension of a string with a hanging object attached... but because there is no gravity to work out I don't know how to calculate this?

Any help is appreciated!
 
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Write out Newton's second law for both masses.
 


You should also reexamine the part of your subject line that says that there is no acceleration.
 

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