{"product_id":"rollix-rolling-resistance-pixel-sticker","title":"Rollix – Rolling Resistance Physics Sticker","description":"\u003cp\u003eMeet Rollix, a rubber tyre who rolls happily but always loses a little energy as heat. Rolling resistance is a small coefficient times the normal force, about 0.01 for car tyres. A 1500 kg car feels about 150 N, costing about 3.7 kW at 25 m\/s. Pixel-art kiss-cut sticker in 2, 3, 4 and 6 inches; equation, symbols and sources in the physics panel below.\u003c\/p\u003e","brand":"Printify","offers":[{"title":"2\" × 2\" \/ White","offer_id":50658857910375,"sku":"11401619930781076394","price":4.99,"currency_code":"USD","in_stock":true},{"title":"3\" × 3\" \/ White","offer_id":50658857943143,"sku":"90370124147449326433","price":6.99,"currency_code":"USD","in_stock":true},{"title":"4\" × 4\" \/ White","offer_id":50658857975911,"sku":"26428515988547889526","price":8.99,"currency_code":"USD","in_stock":true},{"title":"6\" × 6\" \/ White","offer_id":50658858008679,"sku":"19743553948585048069","price":11.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/files\/01_clean_871a0281-d8d5-47b0-9918-5439a44a2640.jpg?v=1792806237","url":"https:\/\/pixelatedphysics.com\/products\/rollix-rolling-resistance-pixel-sticker","provider":"Pixelated Physics","version":"1.0","type":"link"}