Is this a good answer for 7, In the debate between Lawrence and Paula, Paula is correct. While an object is stationary it can still have forces acting on it. For example, these forces can be equal in magnitude but opposite in direction. Let's look at a cup of water sitting on a table, gravity is pulling it down and the table is pushing upwards. While we can not see this taking place, the force balances out allowing the cup of water to stay stationary