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{"name": "GEMIDDELD: Valbeweging van een balletje", "extensions": ["jsxgraph"], "custom_part_types": [], "resources": [], "navigation": {"allowregen": true, "showfrontpage": false, "preventleave": false, "typeendtoleave": false}, "question_groups": [{"pickingStrategy": "all-ordered", "questions": [{"name": "GEMIDDELD: Valbeweging van een balletje", "tags": ["interactive", "JSXgraph", "jsxgraph", "Jsxgraph", "modelling", "motion under gravity", "ode", "ODE", "plot solution", "second order differential equation", "velocity"], "metadata": {"description": "<p>1) Schrijf een modeloplossing. Houd rekening dat je bij randomisatie dit anders zal moeten schrijven.</p>\n<p>2) Randomiseer de snelheid, en controleer welke effecten dat heeft op de andere variabelen.</p>", "licence": "Creative Commons Attribution 4.0 International"}, "statement": "<p>A ball is thrown upwards, and moves according to the equation $\\displaystyle{\\frac{d^2z}{dt^2}=-g}$ <br/>(where $z(t)$ is distance in metres measured upwards from the ground and the constant acceleration of gravity, $g$ , is given as $9.81\\;m/s^2$).</p>\n<p>The ball is projected upwards with a speed $\\var{v}\\;m/s$.</p>", "advice": "<h4>a)</h4>\n<p>...</p>\n<h4>b)</h4>\n<p>...</p>\n<p></p>", "rulesets": {"std": ["all", "fractionNumbers", "!collectNumbers", "!noLeadingMinus"]}, "extensions": ["jsxgraph"], "builtin_constants": {"e": true, "pi,\u03c0": true, "i": true}, "constants": [], "variables": {"mh": {"name": "mh", "group": "Ungrouped variables", "definition": "100^2/(2*g)", "description": "", "templateType": "anything", 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