Why is my Rigidbody.Addforce accelearating overtime.

Unity Engine
1 
I am trying to allow my bullet to move forward and used rigidbody.addforce but realize it is accelerating.Can anybody tell me how do I solve it

else if(slow  !fastforward  !freeze)
			{
				bulletSpd=5.0f;
				rigidbody.AddForce(transform.forward * bulletSpd);
			}
2

Not sure without seeing the rest of the code, but “add force” is accumulative. Every time you call this, you add a little more motion to your rigidbody. So you need to ensure you only apply that force when wanted, such as if a ‘go’ button is held down. For a bullet, you can put the AddForce line in the Start() method and apply it only once when the bullet starts. Or add the force when you create the bullet, like this:

	shot = Instantiate(bullet,transform.position, transform.rotation) as GameObject;
	shot.rigidbody.AddForce(shot.transform.forward*bulletSpd);
3

I solve it by adding drag to the object

4

which would suggest you’re doing “+1 -1” every frame… rather than “+1 when applicable” (unless you’re modelling something like terminal velocity during a fall or maybe flight… then you’ve got it :slight_smile: )