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Added initial height option in Projectile Motion Calculator (#1941)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,39 +1,44 @@ | ||
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| let initialVelocity = document.querySelector("#initial-velocity"); | ||
| let launchAngle = document.querySelector("#launch-angle"); | ||
| let initialHeight = document.querySelector("#initial-height"); | ||
| let btn = document.querySelector("#btn"); | ||
| let msg1 = document.querySelector("#msg1"); | ||
| let msg2 = document.querySelector("#msg2"); | ||
| let msg3 = document.querySelector("#msg3"); | ||
| const g = 9.8; | ||
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| btn.addEventListener("click", () => { | ||
| if (initialVelocity.value == "" || launchAngle.value == "") { | ||
| alert("Enter a valid input"); | ||
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| if (initialVelocity.value === "" || launchAngle.value === "" || initialHeight.value === "") { | ||
| alert("Enter all valid inputs"); | ||
| } else { | ||
| calculateProjectile(); | ||
| } | ||
| cal_pro(); | ||
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| }); | ||
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| const cal_pro = () => { | ||
| let max_height = (((initialVelocity.value) ** 2) * (Math.sin((Math.PI / 180) * launchAngle.value) ** 2)) / (2 * g); | ||
| console.log(max_height) | ||
| const calculateProjectile = () => { | ||
| let velocity = parseFloat(initialVelocity.value); | ||
| let angle = parseFloat(launchAngle.value); | ||
| let height = parseFloat(initialHeight.value); | ||
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| let range = (((initialVelocity.value) ** 2) * Math.sin((Math.PI / 180) * 2 * launchAngle.value)) / g | ||
| console.log(range) | ||
| // Convert angle to radians | ||
| let angleRad = (Math.PI / 180) * angle; | ||
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| let timeOfflight = ((2 * (initialVelocity.value)) * Math.sin((Math.PI / 180) * launchAngle.value)) / g | ||
| console.log(timeOfflight) | ||
| // Max height formula | ||
| let max_height = (velocity ** 2 * Math.sin(angleRad) ** 2) / (2 * g) + height; | ||
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| if (initialVelocity.value == "" || launchAngle.value == "") { | ||
| msg1.innerHTML = `<li>Max Height:-</li>` | ||
| msg2.innerHTML = `<li>Range:-</li>` | ||
| msg3.innerHTML = `<li>Time of Flight:-</li>` | ||
| } | ||
| else { | ||
| msg1.innerHTML = `<li>Max Height:${max_height}m</li>` | ||
| msg2.innerHTML = `<li>Range:${range}m</li>` | ||
| msg3.innerHTML = `<li>Time of Flight:${timeOfflight}s</li>` | ||
| } | ||
| } | ||
| // Time to reach max height | ||
| let timeToPeak = (velocity * Math.sin(angleRad)) / g; | ||
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| // Total flight time (up and down) | ||
| let totalFlightTime = | ||
| timeToPeak + | ||
| Math.sqrt((2 * (height + (velocity ** 2 * Math.sin(angleRad) ** 2) / (2 * g))) / g); | ||
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| // Range formula | ||
| let range = velocity * Math.cos(angleRad) * totalFlightTime; | ||
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| // Update results | ||
| msg1.innerHTML = `<li>Max Height: ${max_height.toFixed(2)} m</li>`; | ||
| msg2.innerHTML = `<li>Range: ${range.toFixed(2)} m</li>`; | ||
| msg3.innerHTML = `<li>Time of Flight: ${totalFlightTime.toFixed(2)} s</li>`; | ||
| }; |
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