[prettyyinpinkk9]

You're correct...if the center of the bumper is higher than the center of the ball, the ball will roll under the robot, causing 2 different scenarios...1)the ball will cause the wheels to come off the ground, hendering any type of movement 2) the ball will cause only the front wheels to come off the ground, but as the robot moves forward, the ball forces the back wheels off the ground, but at the same time the front wheels are lowered back onto the ground