{"product_id":"united-scientific®-air-track-accessories-150cm","title":"United Scientific® Air Track \u0026 Accessories, 150cm","description":"Investigate speed, acceleration and force in linear motion; momentum and energy in collisions; and characteristics of harmonic oscillators. This air track is constructed of high quality aluminum alloy and has the advantages of being both lightweight and highly durable. Precision machining provides a smooth surface and high linearity. It includes a comprehensive accessory package for experiments in linear motion. The track length is 150cm, and it is straight to better than 0.1mm throughout. Includes activity guide.\n\nNOTE: This item requires an air source, item QAS001 or QAS001-V, and a digital timer with photogates, item DTPHG1 (not included).","brand":"United Scientific Supplies","offers":[{"title":"Default Title","offer_id":49962414309653,"sku":"USSATRK01","price":580.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0857\/4897\/3845\/files\/ATRK01_20Air_20Track_20Accessories.jpg?v=1781075632","url":"https:\/\/unitedsupplycorp.com\/products\/united-scientific%c2%ae-air-track-accessories-150cm","provider":"United Supply Corp.","version":"1.0","type":"link"}