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freeCodeCamp/curriculum/challenges/english/08-coding-interview-prep/project-euler/problem-317-firecracker.english.md
Valeriy 79d9012432 fix(curriculum): quotes in tests (#18828)
* fix(curriculum): tests quotes

* fix(curriculum): fill seed-teardown

* fix(curriculum): fix tests and remove unneeded seed-teardown
2018-10-20 23:32:47 +05:30

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---
id: 5900f4aa1000cf542c50ffbc
challengeType: 5
title: 'Problem 317: Firecracker'
---
## Description
<section id='description'>
A firecracker explodes at a height of 100 m above level ground. It breaks into a large number of very small fragments, which move in every direction; all of them have the same initial velocity of 20 m/s.
We assume that the fragments move without air resistance, in a uniform gravitational field with g=9.81 m/s2.
Find the volume (in m3) of the region through which the fragments move before reaching the ground.
Give your answer rounded to four decimal places.
</section>
## Instructions
<section id='instructions'>
</section>
## Tests
<section id='tests'>
```yml
tests:
- text: <code>euler317()</code> should return 1856532.8455.
testString: assert.strictEqual(euler317(), 1856532.8455, '<code>euler317()</code> should return 1856532.8455.');
```
</section>
## Challenge Seed
<section id='challengeSeed'>
<div id='js-seed'>
```js
function euler317() {
// Good luck!
return true;
}
euler317();
```
</div>
</section>
## Solution
<section id='solution'>
```js
// solution required
```
</section>