Working with Springs: What Happens When Mass m1 is Pushed?

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Discussion Overview

The discussion revolves around the dynamics of two masses, m1 and m2, connected by a massless spring when a force F is applied to m1. Participants explore the resulting motion, compression of the spring, and potential oscillations in the system, focusing on theoretical implications and mathematical relationships.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested
  • Mathematical reasoning

Main Points Raised

  • Some participants propose that applying force F to m1 will cause it to accelerate, leading to compression in the spring and exerting forces on both m1 and m2.
  • Others suggest that the situation may become complicated, indicating that oscillations could occur in the system as the force transitions from zero to a steady state.
  • There is a question about whether the accelerations of m1 and m2 can be related, given that F is a steady force.
  • One participant raises the possibility that m1 may not move unless work is done, introducing uncertainty about the initial conditions required for motion.
  • Another participant asserts that if the surfaces are frictionless and the spring is massless, both masses will surely accelerate.
  • There is a request for equations to describe the system, indicating a desire for a more formal mathematical treatment of the problem.
  • A participant expresses confusion about the effects of exerting force on m1 and the subsequent behavior of the spring.

Areas of Agreement / Disagreement

Participants express differing views on the behavior of m1 when force F is applied, with some asserting it will accelerate and others questioning whether it will move at all. The discussion remains unresolved regarding the exact dynamics and relationships between the masses and the spring.

Contextual Notes

Participants have not reached consensus on the conditions under which m1 will move or the nature of the oscillations that may occur. There are also unresolved assumptions regarding the initial state of the system and the definitions of forces involved.

D_DaYwAlKeR
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Spring force always creates a doubt in my mind...

My question is that..

When two masses say m1 and m2 are connected to each other via a massless spring...
m2 is ahead of m1...
if we push the block m1 towards m2 ..say with a force F..then what exactly will happen??

What i think is that the force F will cause m1 to accelerate ..a compression will be produced in the spring ..and the spring will in turn exert a force on m1 and m2 both..
 
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D_DaYwAlKeR said:
When two masses say m1 and m2 are connected to each other via a massless spring...
m2 is ahead of m1...
if we push the block m1 towards m2 ..say with a force F..then what exactly will happen??

What i think is that the force F will cause m1 to accelerate ..a compression will be produced in the spring ..and the spring will in turn exert a force on m1 and m2 both..

Yes, but it might get a bit complicated. If it goes from no force to a steady force F then I expect there will be some oscillation in the system.
 
haruspex said:
Yes, but it might get a bit complicated. If it goes from no force to a steady force F then I expect there will be some oscillation in the system.


But we can still relate the accelerations of m2 with that of m1..can't we??..

F is a steady force...
 
D_DaYwAlKeR said:
But we can still relate the accelerations of m2 with that of m1..can't we??..

F is a steady force...

Sure. Can you write the equations?
 
What i think is that the force F will cause m1 to accelerate

perhaps, perhaps not...m1 may not even move...unless work is done.

equations,and even some derivations, can be found here:

http://en.wikipedia.org/wiki/Spring_constant
 
Naty1 said:
perhaps, perhaps not...m1 may not even move...unless work is done.

equations,and even some derivations, can be found here:

http://en.wikipedia.org/wiki/Spring_constant

The suraces are frictionless and the spring is massless...both the masses will surely accelerate...

@haruspex : I could not write equation ...

Im not able to understand what is going to happen if we exert a force on m1...wat the spring will do after that...
 

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