Collider.attachedRigidbody

설명

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.

using UnityEngine;
using System.Collections;

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