4. (Open ended) Choose an object and a real-life situation. For example, a person on a roller coaster or a baseball as it is being hit. a) Describe the situation and state what the object is b) Draw a free body diagram for the object C) Estimate the magnitude and direction of each of the forces on the object I'm looking for numbers here. Use your best judgment about what reasonable values would be. Think about the relative sizes of the forces. Include a brief explanation of how you estimated each force. I'm not looking for the perfect answers here, instead I want to see your thinking. d) Find the net force on the object. Give your answer using correct vector notation. e) Find the acceleration of the object. Give your answer using correct vector notation. 1') Make sure that Newton's 2nd law is true for your situation