How is the force to move an object on a flat service calculated?

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Discussion Overview

The discussion centers on how to calculate the force required to move an object on a flat surface, exploring the role of friction, weight, and other forces. Participants consider whether the orientation of the object affects the calculation.

Discussion Character

  • Technical explanation, Conceptual clarification, Debate/contested

Main Points Raised

  • Some participants suggest that the orientation of the object (flat vs. on edge) may influence the friction encountered.
  • It is proposed that to calculate the force, one must consider both the friction and the weight of the object.
  • One participant states that the formula F=ma is relevant, indicating that mass and acceleration are key factors in determining force.
  • Another participant emphasizes the importance of accounting for other forces, particularly friction and gravity, in everyday situations.
  • It is noted that the net force is the product of mass and net acceleration, with forces like gravity and friction being components of this net force.
  • Participants mention that friction changes if the surface angle deviates from horizontal, with a formula provided: Friction = (coefficient of friction) x (Normal reaction from the plane).
  • One participant presents a general formula for friction: Ff= μmgcosθ, indicating the dependence on the coefficient of friction and the angle of the surface.

Areas of Agreement / Disagreement

Participants express various viewpoints on the factors affecting force calculation, with no consensus reached on the implications of object orientation or the specific formulas to use.

Contextual Notes

Participants reference multiple forces and conditions that may affect calculations, such as friction coefficients and surface angles, without resolving the complexities involved.

underb
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How is the force to move an object on a flat service calculated? Does it mater if it's flat or on edge?
 
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It might. If its flat the friction would be higher.
 


To calculate the force u have to take into account the amount of friction and also the weight of the mass u have
 


dreit said:
To calculate the force u have to take into account the amount of friction and also the weight of the mass u have

F=ma

To calculate the force you need to know the mass and the acceleration.

To make it more complicated, you would also need to keep in mind other forces around it (mainly friction for everyday situations, perhaps gravity, etc.)
 


The net force is the objects mass times it's net acceleration (or just acceleration if you are talking about an inertial - nonaccelerating - frame).

You can divide those forces up into gravity, friction, magnetism ect though usually even those forces are resultant vectors of forces originating from many points.
 


Dont forget that friction will change if the plane on which body is moving makes any angle other that 0 with ground!

Use: Friction = (coefficient of friction) x (Normal reaction from plane on which body moves)
 


In general terms, Ff= μmgcosθ
 

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