1. The problem statement, all variables and given/known data We must build a self contained device which can pass through a standard doorway. It will start .5 metres from the egg cup with an egg in it this egg cup is then .5 metres from a cart that the egg has to pass through and continue going to a target on the other side of the cart. We can not touch the car after it has started moving and we can not assist it in anyway through the cart or picking up the egg. I have no ideas so far and do not know where to start.