{"product_id":"atwoods-machine-plate-003-physics-poster","title":"Atwood's Machine – Plate 003 Physics Poster","description":"\u003cp\u003ePlate 3 speaks for itself: \u003cem\u003e“Gravity, slowed down enough to read.”\u003c\/em\u003e\u003c\/p\u003e\u003ch3\u003eThe Physics\u003c\/h3\u003e\u003cp\u003eTwo masses on a light string over an ideal pulley accelerate at a small, chosen fraction of g, slow enough to time by hand. Atwood used it to test Newton's laws of uniformly accelerated motion.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003ea = (m₁ − m₂) g \/ (m₁ + m₂)\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003ea: acceleration of the masses, m s⁻²\u003c\/li\u003e\n\u003cli\u003em₁, m₂: the two masses, kg\u003c\/li\u003e\n\u003cli\u003eg: gravitational acceleration, m s⁻²\u003c\/li\u003e\n\u003cli\u003eT: string tension, N\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eTension T = 2 m₁ m₂ g \/ (m₁ + m₂). Cambridge, 1784.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eHonest caveat:\u003c\/em\u003e The formula assumes a massless, frictionless pulley and string.\u003c\/p\u003e\u003ch3\u003eSources\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eG. Atwood, A Treatise on the Rectilinear Motion and Rotation of Bodies (Cambridge, 1784).\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eOn the poster\u003c\/h3\u003e\u003cp\u003ePlate 003, “Atwood's Machine”: the pixel-art plate with its slogan “Gravity, slowed down enough to read.”, the key equation and the facts panel shown above. Pixelated Physics. Physics. Personified.\u003c\/p\u003e","brand":"Printify","offers":[{"title":"9'' x 12\" (Vertical) \/ Matte","offer_id":50961446010983,"sku":"60719595006799638146","price":19.99,"currency_code":"USD","in_stock":true},{"title":"9'' x 12\" (Vertical) \/ Fine Art","offer_id":50961446043751,"sku":"20267057438834392575","price":29.99,"currency_code":"USD","in_stock":true},{"title":"9'' x 12\" (Vertical) \/ Semi Glossy","offer_id":50961446076519,"sku":"41797189856803912571","price":19.99,"currency_code":"USD","in_stock":true},{"title":"18″ x 24″ (Vertical) \/ Fine Art","offer_id":50961446109287,"sku":"23971500934551795599","price":44.99,"currency_code":"USD","in_stock":true},{"title":"18″ x 24″ (Vertical) \/ Semi Glossy","offer_id":50961446142055,"sku":"19388073047985425979","price":29.99,"currency_code":"USD","in_stock":true},{"title":"18″ x 24″ (Vertical) \/ Matte","offer_id":50961446174823,"sku":"20221031525993788264","price":29.99,"currency_code":"USD","in_stock":true},{"title":"36'' x 48\" (Vertical) \/ Matte","offer_id":50961446207591,"sku":"29483662107852940204","price":69.99,"currency_code":"USD","in_stock":true},{"title":"36'' x 48\" (Vertical) \/ Fine Art","offer_id":50961446240359,"sku":"79452103705730625942","price":119.99,"currency_code":"USD","in_stock":true},{"title":"36'' x 48\" (Vertical) \/ Semi Glossy","offer_id":50961446273127,"sku":"57280647952387587515","price":69.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/files\/1943618894084500331_2048.jpg?v=1793631826","url":"https:\/\/pixelatedphysics.com\/products\/atwoods-machine-plate-003-physics-poster","provider":"Pixelated Physics","version":"1.0","type":"link"}