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  • Understanding Forces That Stop Rolling Balls: Friction & Air Resistance
    There are a few forces that can stop a ball from rolling:

    * Friction: This is the most common force that stops a ball. Friction acts between the ball's surface and the surface it's rolling on. There are two types of friction that play a role:

    * Rolling friction: This is a relatively small force that resists the motion of the ball due to the slight deformation of both the ball and the surface.

    * Sliding friction: If the ball starts to slip or skid, this larger force comes into play.

    * Air resistance: As the ball moves through the air, it encounters resistance from the air molecules. This force becomes more significant for faster moving balls or balls with larger surface areas.

    * Gravity: If the ball is rolling uphill, gravity will work against its motion and eventually stop it.

    * External forces: Anything that directly applies a force against the ball's motion will also stop it. This could be someone kicking the ball in the opposite direction, or a wall that the ball rolls into.

    Ultimately, it's usually a combination of these forces that brings a rolling ball to a stop. The specific force that dominates will depend on the situation.

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