What is the Relationship Between Net Force, Speed, and Time for a Moving Object?

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Homework Help Overview

The discussion revolves around the relationship between net force, speed, and time for a moving object experiencing a decreasing net force directed to the right. The original poster questions whether the object's speed is constant or increasing under these conditions.

Discussion Character

  • Exploratory, Conceptual clarification, Assumption checking

Approaches and Questions Raised

  • Participants explore the implications of net force and acceleration on the object's speed, questioning the relationship between these concepts. There is a back-and-forth regarding the nature of acceleration and its effect on speed.

Discussion Status

The discussion is active, with participants engaging in clarifying the concepts of force, acceleration, and speed. Some guidance has been offered regarding the relationships between these physical quantities, but there is still uncertainty expressed by the original poster about their conclusions.

Contextual Notes

Participants reference previous problems and discussions, indicating a potential lack of confidence in recalling relevant concepts. The original poster's uncertainty about their understanding of acceleration and its implications for speed is noted.

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Homework Statement




An object is moving to the right, and experiencing a net force that is directed to the right, The magnitude of the force is decreasing with time. the speed of the object is: constant or increasing??

Homework Equations



none?

The Attempt at a Solution


constant??
 
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increasing wasn't it?
 
Uhh... :rolleyes:

I don't remember. :confused:

Why would it be increasing?
 
because there's acceleration.
 
Aaaaah, yes. :)

Well, this time it's about a force.
Do you know the relation between acceleration and force?
 
force equals mass times acceleration
 
Good! :smile:

So we have an object moving to the right.
In which direction is the force/acceleration?
 
the right
 
  • #10
Yep! :wink:

Do you also know the relation between acceleration and speed?
 
  • #11
acceleration is the change in speed?
 
  • #12
Yes. To be exact: acceleration is the change in speed per unit of time.

Soooooo?
 
  • #13
sooo. its increasing?
 
  • #14
Maybe...
Why would it be increasing?
 
  • #15
um because its accelerating?
 
  • #16
Yes, yes.
I think I've dragged this out long enough.
Yes, accelerating means speeding up.

What is the reason you're still doubting your own answer?
 
  • #17
i don't know. cause i tend to be wrong. haha
 

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