Mechanics: Why Velocity Matters for Rough Plane Deceleration

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SUMMARY

The discussion centers on the relationship between velocity and deceleration when an object is projected up a rough plane. It establishes that while velocity and acceleration (or deceleration) are distinct concepts, velocity does not influence the magnitude of the force in scenarios involving a constant coefficient of kinetic friction. However, it is noted that in cases where drag force is present, such as objects moving through air, the drag force is indeed dependent on velocity.

PREREQUISITES
  • Understanding of basic physics concepts such as velocity, acceleration, and force.
  • Familiarity with the principles of kinetic friction.
  • Knowledge of drag force and its dependence on velocity.
  • Basic grasp of motion dynamics in rough planes.
NEXT STEPS
  • Study the effects of kinetic friction on deceleration in various scenarios.
  • Explore the concept of drag force and its mathematical representation.
  • Investigate the differences between static and kinetic friction in motion analysis.
  • Learn about the equations of motion for objects on inclined planes.
USEFUL FOR

Students of physics, educators teaching mechanics, and anyone interested in understanding the dynamics of motion on rough surfaces.

Kajan thana
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If an object is is projected up a rough plane with a velocity. Why don't we take the velocity into account when we are finding out the deceleration?
 
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Kajan thana said:
If an object is is projected up a rough plane with a velocity. Why don't we take the velocity into account when we are finding out the deceleration?
Velocity and acceleration (deceleration) are totally different things.
 
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my question is does the velocity affect the magnitude of the force
 
Kajan thana said:
my question is does the velocity affect the magnitude of the force

Not for a constant coefficient of kinetic friction.

If you have something moving through air, then the DRAG force is velocity dependent.

Zz.
 

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