When ‘with respect to CS’ is set to ‘Absolute world’ the sphere rotates about the y plane with respect to the earths axis whereas when it is set to ‘Local’ the sphere moves in the y direction of the sphere body axis.
From the graph below it can be seen that linear velocity of the sphere increases greatly at the start of the simulation but remains constant just before the velocity reaches 1m/s I found that no matter how much I changed the respective linear velocity gain value the linear always tended towards 1m/s but the rate at which this final velocity would be obtained depended on the size of the