Player teleports when using Addforce 2D

Hello,

Im currently trying to repel my character from explosions in a consistent arc, but as you can see from this gif (https://giphy.com/gifs/L2O9xGET7lcWPa0FXH) the character teleports horizontally then slowly rises which is not what i want. Can someone please tell me why this is happening?

My code:

public void addForce ()
{
myRigidBody2d.AddForce(transform.up * magnitude);

myRigidBody2d.AddRelativeForce(transform.right * -700);
}
addForce is triggered by the following method that sits on the explosion gameobject:

private void OnTriggerEnter2D(Collider2D collision)

 {
     if (collision.gameObject.tag == "Player")
     {
         Player.MyInstance.addForce();
     }
 }