Recall from class that Flag 5 HSFN. In your own words, explain why it is an inequality and not an equality. (Hint: Think about varying the angle of incline). Select the refrigerator. Using the Us provided in the PhET, predict the angle at which the refrigerator will just begin to slide down the ramp when beginning at the top of the ramp at rest. Now perform the experiment. Start with a low angle, put the fridge at the top of the ramp, and write down the frictional force and the angle in the table below. Slowly increase the angle and include angles both lower and higher than your predicted angle