What is the difference between sliding and rolling of a wheel?

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SUMMARY

The discussion clarifies the concepts of sliding and rolling in relation to a wheel's movement. When a wheel spins, it rotates without moving forward, resulting in only the contact point being affected by the surface, while the rest of the wheel remains stationary. In contrast, when a wheel slides, it moves forward, but only the contact point interacts with the surface, leaving a line traced in the paint. Rolling occurs when the distance traveled by the wheel matches the distance traced on the surface, indicating a combination of both rotation and forward movement.

PREREQUISITES
  • Understanding of basic physics concepts such as motion and friction.
  • Familiarity with rotational dynamics.
  • Knowledge of kinematics, particularly linear and angular motion.
  • Basic comprehension of surface interactions and contact points.
NEXT STEPS
  • Research the principles of rotational dynamics in physics.
  • Explore the concept of friction and its effects on motion.
  • Learn about the equations of motion for rolling objects.
  • Investigate real-world applications of sliding and rolling, such as in vehicle dynamics.
USEFUL FOR

Students of physics, educators teaching motion concepts, and engineers involved in mechanical design and dynamics will benefit from this discussion.

teng125
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can anyone pls explain to me what is sliding and rolling of a let say a wheel??I'm really confuse about it
thanx
 
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Ok:
Imagine a surface wetted with paint, and place a moving wheel upon it.
Now, there are two extremes that may happen:

1) The wheel is merely rotating, but its center is at rest.
Thus, gradually, the whole rim of the wheel gets painted, but on the SURFACE, paint is only removed from a SINGLE point (the contact point).

We say that the wheel is SPINNING.

2) The wheel moves forward, but the only point on the wheel that gets painted is the one point always in contact with the surface.
On the SURFACE, a line is traced out in the paint.

We say that the wheel is SLIDING.

And then:
With ROLLING, we mean that the arc painted onto the wheel is always of equal length as the line traced out on the wetted surface.
 
ok.thanx...
 

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