Unexpected control change in rolling ball game?

Hi there :slight_smile:

I made a simple Rolling Ball game., where you can change the size of the ball, and with it the mass as well.
The problem is, that after the first change, the smallest ball’s speed goes haywire. Compared to it’s original (starting) speed, it becomes way faster, which is weird because it should be the same (I add and remove the same amount of force, mass, etc.)

Is it a known bug or did I made a mistake somewhere?

Thanks guys, any help is really appreciated :slight_smile:

are you using torque to move the ball? try using impulse instead, and check the “Vel Change” boll, that will override the mass and apply a velocity change instead of an impulse

Im using torque + addforce to control the ball. I tied Velocity Change, but that didnt work out with the physics based puzzles.