Collision.rigidbody

설명

The Rigidbody we hit (Read Only). This is null if the object we hit is a collider with no rigidbody attached.

using UnityEngine;
using System.Collections;

public class ExampleClass : MonoBehaviour {
    void OnCollisionStay(Collision collision) {
        if (collision.rigidbody)
            collision.rigidbody.AddForce(Vector3.up * 15);
        
    }
}