One object exerting force on another

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SUMMARY

The discussion centers on the mechanics of two steel blocks, Block X (3.0 kg) and Block Y (12 kg), connected by a taut string on a frictionless surface, with a force of 45 N applied to Block X. According to Newton's Third Law, the force exerted by Block Y on Block X is equal in magnitude and opposite in direction to the force exerted by Block X on Block Y. The tension in the string must be calculated to determine the force Block Y exerts on Block X, which is influenced by the total mass of both blocks and the applied force.

PREREQUISITES
  • Understanding of Newton's Laws of Motion, specifically Newton's Third Law
  • Basic knowledge of tension in strings and forces
  • Familiarity with concepts of mass and acceleration
  • Ability to perform calculations involving force, mass, and acceleration
NEXT STEPS
  • Calculate the acceleration of the system using Newton's Second Law (F = ma)
  • Determine the tension in the string connecting the two blocks
  • Explore the implications of frictionless surfaces in mechanics
  • Review examples of action-reaction force pairs in different physical scenarios
USEFUL FOR

This discussion is beneficial for physics students, educators, and anyone interested in understanding the principles of mechanics, particularly in relation to forces and motion in connected systems.

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Two steel blocks are at rest on a frictionless horizontal surface. Block X has a mas of 3.0 kg ans is attacthed by means of a light taut string to block Y that has a mass of 12 kg. A force of 45 N (E) is applied to block x. Calculate the force block Y exerts on block x.

I don't have any idea of how to go about do this question. I think it's related to Newton's 3rd law about action-reaction forces but I don't know any else. Could someone please guide me in the right direction? Thanks
 
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There is a taut string - in tension.

The force is applied to one block (X), but because of the string, it affects both blocks of the total mass, and X is pulling on block Y by virtue of the string.

This might help - http://hyperphysics.phy-astr.gsu.edu/hbase/fcm.html#c1
 
Astronuc said:
There is a taut string - in tension.

The force is applied to one block (X), but because of the string, it affects both blocks of the total mass, and X is pulling on block Y by virtue of the string.

This might help - http://hyperphysics.phy-astr.gsu.edu/hbase/fcm.html#c1

Thanks :D
 

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