Easy granate

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class granate : MonoBehaviour
{
    public GameObject explotion;
    public float expForce = 400;
    private void OnCollisionEnter(Collision collision)
    {
        GameObject exp = Instantiate(explotion, transform.position, transform.rotation);
        Collider[] colliders = Physics.OverlapSphere(transform.position, 10);

        for(int i = 0; i < colliders.Length; i++)
        {
            if (colliders[i].gameObject.tag == "Explosion")
            {
                colliders[i].gameObject.GetComponent<Rigidbody>().AddExplosionForce(expForce, collision.contacts[0].point - collision.contacts[0].normal, 100);
            }
            if (colliders[i].gameObject.tag == "Woda")
            {
                colliders[i].gameObject.GetComponent<Rigidbody>().AddExplosionForce(expForce, collision.contacts[0].point - collision.contacts[0].normal, 100);
            }
            if (colliders[i].gameObject.tag == "Cube")
            {
                colliders[i].gameObject.GetComponent<Rigidbody>().AddExplosionForce(expForce, collision.contacts[0].point - collision.contacts[0].normal, 100);
            }
        }

        Destroy(gameObject);
    }
}