need help with colision problem

Questions & Answers
1

I made this code but the colision part is not trigered
using UnityEngine;
using System.Collections;

public class Bullet : MonoBehaviour {
	//fly speed
	public float speed = 2000.0f;
	//explosion prefab (particles)
	public GameObject ExplosionPrefab;


	void OnColisionEnter(Collision col) {
		Object.Destroy(gameObject, 2.0f);
		Instantiate (ExplosionPrefab, transform.position, Quaternion.identity);
		print ("it works");

	}

}
2

@SQUARE BADGER You spelled Collision wrong it needs double L.