Investigating friction
{"Image DocumentName": "Investigating friction", "Image ImageDescription": "I want to buy a new pair of trainers for the gym. What investigation could I do to look at how much grip my trainer gives me? What variables are there?", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}