Collider.attachedRigidbody

Description

The rigidbody the collider is attached to.

Returns null if the collider is attached to no rigidbody.

Colliders are automatically connected to the rigidbody attached to the same game object or attached to any parent game object.

    // Lift the rigidbody attached to the collider.
    GetComponent.<Collider>().attachedRigidbody.AddForce(0,1,0);

using UnityEngine;
using System.Collections;

public class ExampleClass : MonoBehaviour {
    void Example() {
        GetComponent<Collider>().attachedRigidbody.AddForce(0, 1, 0);
    }
}