T tomtomson New member Apr 19, 2010 #1 ...90 N? 1. Normal force and Ft 2. Normal force and gravity 3. Ft and friction 4. Ft and gravity ?? thanks i dont get this!
...90 N? 1. Normal force and Ft 2. Normal force and gravity 3. Ft and friction 4. Ft and gravity ?? thanks i dont get this!
