What is the most effective method to prolong the Unity3d Rigidbody?

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Set the Rigidbody mass: Make sure the mass of the Rigidbody is appropriate for the object it's attached to. A lighter mass means less force and momentum, which can slow down or stop the Rigidbody faster.

Use drag and angular drag: Apply drag and angular drag to the Rigidbody to help it slow down faster. Drag is a force that resists movement through a fluid, and angular drag resists spinning.

Apply friction: Setting friction on surfaces that the Rigidbody interacts with can also help slow it down faster. This can be done by adjusting the physics material of the object or surface.

Limit the Rigidbody's velocity: Use code to limit the Rigidbody's maximum velocity. This helps prevent it from traveling too fast and losing control.

Use force fields: Apply force fields that push or pull the Rigidbody to slow it down or keep it in a specific location.

Use collision detection: Setting the Rigidbody's collision detection settings to Continuous Dynamic can help it react more quickly to collisions, which can help it slow down or stop faster.

Use braking actions: Apply braking actions that can slow down the Rigidbody more quickly. This can be done with code or by adding constraints to the Rigidbody.