// Numbas version: finer_feedback_settings
{"name": "PreCal Application of Polynomials Quadratic 2D Motion", "extensions": [], "custom_part_types": [], "resources": [], "navigation": {"allowregen": true, "showfrontpage": false, "preventleave": false, "typeendtoleave": false}, "question_groups": [{"pickingStrategy": "all-ordered", "questions": [{"rulesets": {}, "variablesTest": {"condition": "", "maxRuns": 100}, "preamble": {"js": "", "css": ""}, "tags": [], "ungrouped_variables": ["h0", "v0", "tGround"], "functions": {}, "name": "PreCal Application of Polynomials Quadratic 2D Motion", "advice": "", "metadata": {"licence": "All rights reserved", "description": ""}, "extensions": [], "variables": {"tGround": {"definition": "precround((-v0-sqrt((v0)^2-4*(-16.1)*h0))/(2*(-16.1)),3)", "group": "Ungrouped variables", "templateType": "anything", "name": "tGround", "description": ""}, "h0": {"definition": "random(10..100#0.25)", "group": "Ungrouped variables", "templateType": "anything", "name": "h0", "description": ""}, "v0": {"definition": "random(13..50#0.1)", "group": "Ungrouped variables", "templateType": "anything", "name": "v0", "description": ""}}, "variable_groups": [], "parts": [{"customName": "", "unitTests": [], "gaps": [{"showFeedbackIcon": true, "type": "numberentry", "correctAnswerStyle": "plain", "adaptiveMarkingPenalty": 0, "allowFractions": false, "notationStyles": ["plain", "en", "si-en"], "minValue": "tGround", "showCorrectAnswer": true, "mustBeReduced": false, "correctAnswerFraction": false, "customName": "", "unitTests": [], "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "variableReplacementStrategy": "originalfirst", "showFractionHint": true, "useCustomName": false, "mustBeReducedPC": 0, "variableReplacements": [], "maxValue": "tGround", "marks": 1, "scripts": {}}], "showFeedbackIcon": true, "customMarkingAlgorithm": "", "sortAnswers": false, "extendBaseMarkingAlgorithm": true, "prompt": "<p>The ball hits the ground after [[0]] seconds. (<em><strong>Answer to the nearest thousandths)</strong></em></p>", "variableReplacementStrategy": "originalfirst", "useCustomName": false, "type": "gapfill", "variableReplacements": [], "adaptiveMarkingPenalty": 0, "marks": 0, "scripts": {}, "showCorrectAnswer": true}], "statement": "<p>Standing on the balcony of a hotel $\\var{h0}$&nbsp;feet above the ground, Mr. Young shoots a trick basketball shot upward according to the equation $h(t)= -16.1t^2 +&nbsp; \\var{v0}t + \\var{h0}$, where $h$ is the height of the ball in feet, and $t$ is the time in seconds. How long will it take for his airball to hit the ground?</p>\n<p></p>", "type": "question", "contributors": [{"name": "Terry Young", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/3130/"}]}]}], "contributors": [{"name": "Terry Young", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/3130/"}]}