Question Add Force to Rigidbody

Hello, The Cubes I am spawning are just slowly dropping to the bottom of the Screen. I want to add some force and Shoot em into view.


Error Notice:
InvalidCastException: Specified cast is not valid.
(wrapper castclass) System.Object.__castclass_with_cache(object,intptr,intptr)
UnityEngine.Object.Instantiate[T] (T original, UnityEngine.Vector3 position, UnityEngine.Quaternion rotation)

p.s. I guess there is a better way to post code other than a screenshot, If you have advice on that as well im thankfull too.