Move towards an object but using physics

I'm working on a 2D sidescroller in 3D Unity with physics based movement but I'd like to implement a feature where you can fling yourself directly at an enemy by clicking on them. I figure I could achieve this with something like Vector3.movetowards but that would be non physics based movement.

Basically how can I get the player to move to mouse position but using physics? They don't need to stop once they hit the mouse position, but they do need to hit exactly where mouse position is. Sorry I hope this makes sense, please let me know if you need any more info.

 

You calculate the direction as a vector from the player to the point, the force required for the player to reach the target point, and add force in that direction.

 

How would I go about calculating the force required for the player to reach the target?