a) For each of the following equations, write one sentence explaining the meaning of the equation in words, and a second sentence describing a situation where you would use this equation: Av = v - v Ad = At a = At Fnet = ma F = mg FK = KFN Look back to your answer to Question A in this portfolio as you review all the knowledge and skills you have built up during the first five lessons of your course. Choose one piece of information, or one skill which you think you might use in your life 10 years from now. In a paragraph of three to five (3 - 5) complete sentences, describe how you imagine you will use this knowledge or skill in the future. Remember to save your answers in the document you created in Learning Activity 1.1. You will be asked to submit your completed portfolio at the end of your course.