{"type":"rich","version":"1.0","title":"Work and force (vector notation)","html":"<span class=\"wb-embed wb-embed-math\" data-latex=\"\\Delta E_k=\\int \\vec F_{ext} \\cdot d\\vec r\">\\Delta E_k=\\int \\vec F_{ext} \\cdot d\\vec r</span><footer><cite class=\"wb-embed-author\">Rong Martin-Siebler ZHOU</cite></footer>","width":640,"height":320}