journal entry (4)

Today we are still testing our car. We figured out how to make the car move using the balloon but it doesn't move very far. Plus, sometimes it works and sometimes it doesn't. We think the balloon doesn't make the car move too far because the mass of the car is to large for the little air force the balloon gives. We still need to figure out how to make it turn too. Our hypothesis to make the car turn would be to put the front wheels at a diagonal because if the wheels are at a slant we think it will make the car turn.