Unity 2d, addforce or adjust the rigidbody?

Hey so i've been noticing that the majority of people use addforce to get their character to jump as opposed to doing something like this:

Code (csharp):

1.  
2. if (Input.GetKey(KeyCode.Space) && grounded)
3.         {
4.             rB.velocity = new Vector2 (rB.velocity.x, jumpHeight);
5.         }
6.  

Is there a major difference? Is addforce better than the method i use?

 

It depends on the angle from which you approach the problem. When setting velocity directly, you ignore the mass of the object, which is the same as applying a force that is great enough to push its mass to reach a certain velocity. On the other hand, applying a force takes the object's mass into account, resulting in different velocities for different masses.

From a technical standpoint, I can't comment about whether it makes any difference as far as PhysX is concerned.

 

Thanks i get it now. I find it easier to adjust the jumpspeed/height by changing the rigidbody.

 

Changing velocity directly will override any existing momentum.