Answer: Acceleration or Velocity Change with Constant Force

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Discussion Overview

The discussion centers around the effects of a constant force on an object's acceleration and velocity, exploring concepts from Newton's laws of motion. Participants examine the implications of applying a constant force to an object, particularly in scenarios where the object may not move due to insufficient force.

Discussion Character

  • Technical explanation, Conceptual clarification, Debate/contested

Main Points Raised

  • Some participants question whether a constant force leads to changes in acceleration or velocity.
  • One participant references Newton's 2nd Law, suggesting that if the sum of all forces is constant and mass is constant, then acceleration remains constant.
  • Another participant points out that an object may not move if the applied force is insufficient, raising the question of what happens when the net force is positive.
  • A later reply reiterates the relationship between force, mass, and acceleration, indicating that if force is non-zero, velocity will change.

Areas of Agreement / Disagreement

Participants express differing views on the relationship between constant force, acceleration, and velocity, with no consensus reached on the implications of these concepts.

Contextual Notes

Some assumptions about the conditions under which force is applied and the definitions of motion are not fully explored, leading to potential ambiguities in the discussion.

Lim Y K
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If a constant force acts on an object, does the acceleration changes or velocity changes?
 
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What does Newton's 2nd Law tell you?
 
If you put a constant force on a object siting on the ground, it may not move because your force is not big enough.
 
ztdep said:
If you put a constant force on a object siting on the ground, it may not move because your force is not big enough.
What if the net force is positive. What then?
 
Lim Y K said:
If a constant force acts on an object, does the acceleration changes or velocity changes?
## \vec a = \frac{\vec F}{m}##
according to this formula (Newton´s II law) if sum of all forces (F) is constant and mass m is constant ,then also acceleration a is also constant.

since ##v=\int (dt \cdot a(t))=\int (dt \cdot F(t))/m## if F≠0 then velocity changes.
 

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