OK, thanks for the clarification.

Hah! Now we're talking!

Just added objects.ball.body:resetMassData() after setting the mass and it worked like a charm.

Hello there. I've been playing with the physics tutorial code, and I couldn't find a way to change the mass of a body. I've tried everything but the thing always stays the same, like if the masses are more or less equal. If i have a 5000kg ball and a 1kg brick, the brick won't stop the ball easily, ...