Can't make 2D Sprite jump

Hello,

I've tried using OnCollisonEnter as well as OnTriggerEnter but to no avail. I am simply unable to make my player successfully jump. I believe I've narrowed it down to the Colliders not working.

I got Box Colliders and Rigidbody2D on both my player character and the ground.

I'm using the following code:

Code (CSharp):

1.  
2. void Update()
3.     {
4.         playerMovement();
5.  
6.         if(Input.GetKeyDown(KeyCode.Space) && isOnGround)
7.         {
8.             playerRb.AddForce(Vector2.up, ForceMode2D.Impulse);
9.             isOnGround = false;
10.         }
11.            
12.     }
13.  

Code (CSharp):

1. void OnCollisionEnter2D(Collision collision)
2.      {
3.         if (collision.gameObject.tag  == "Ground")
4.         {
5.             isOnGround = true;
6.             Debug.Log("Player has jumped");
7.         }
8.      }

 

It could be the case that the force you are using is too little. Experiment multiplying it to 10 or 100 and see if it works.