Physics.defaultMaxDepenetrationVelocity

Description

The maximum default velocity needed to move a Rigidbody's collider out of another collider's surface penetration. Must be positive.

This value is usually changed in Edit->Project Settings->Physics inspector instead of from scripts.

Note: Very large values can introduce instability during collision detection; too small values might cause the collider depenetration to fail.

You can also set a maximum depenetration velocity for individual Rigidbodies via Rigidbody.maxDepenetrationVelocity.

using UnityEngine;

public class Example : MonoBehaviour
{
    void Start()
    {
        Physics.defaultMaxDepenetrationVelocity = 5.0f;
    }
}