Kinetic Energy Calculator
Kuchotsa KE = ½mv² kwa mphamvu, masa kapena kufulumira, ndi mzere ndi kuzungulira.
Zithunzizi zimasintha monga momwe mumalemba.
Zachidule
Kinetic energy is the energy an object has because it is moving, KE = ½ × m × v², measured in joules. Mass enters linearly but speed is squared, which is the single most important fact about it: doubling the mass doubles the energy, but doubling the speed quadruples it. Choose which quantity to solve for — energy, mass or velocity — and the calculator also returns the linear momentum p = m × v and plots how the energy climbs with speed.
As a worked example, a 2 kg object moving at 3 m/s carries KE = ½ × 2 × 3² = 9 joules and momentum p = 2 × 3 = 6 kg·m/s. Speed it up to 6 m/s and the kinetic energy jumps to ½ × 2 × 36 = 36 J — four times as much for twice the speed — while the momentum only doubles to 12 kg·m/s. Solving in reverse, 9 J in a 2 kg mass implies a speed of √(2 × 9 / 2) = 3 m/s.
The squared-speed relationship explains a lot of the real world: why stopping distances grow so sharply with speed, why a small increase in a car’s velocity greatly raises crash severity, and why wind and water carry so much power at high flow rates. Kinetic energy is central to collisions, ballistics, vehicle safety, roller-coaster design and the energy budgets of everything from pile drivers to turbines.
Mafunso ofunsidwa nthawi zambiri
Kodi ndi chiyani formula ya kinetic energy?
Kuwala kwa magetsi ndi KE = ½ × m × v², komwe m ndi masa m'makilogalamu ndi v ndi kufulumira m'mita pa mphindi. 2 kg chinthu pa 3 m / s ali ndi ½ × 2 × 9 = 9 joules.
N'chifukwa chiyani kuwala kwa dzuwa kumadalira kwambiri kuwala kwa mwezi?
Mphamvu ya kinetic imakula ndi kagawo ka velocity koma molingana ndi maselo, kotero kuwonjezeka kwa velocity kumawonjezera mphamvu ndi 4 pamene kuwonjezeka kwa maselo kumawonjezera mphamvu.
Kodi pali kusiyana kotani pakati pa mphamvu ya kinetic ndi momentum?
Mphamvu ya moto ndi p = m × v ndipo imakula molingana ndi liwiro, pamene mphamvu ya kinetic ndi ½ m v² ndipo imakula ndi liwiro lokhala ndi 2 kg ya maselo pa 3 m / s ili ndi 6 kg · m / s ya mphamvu ya moto koma 9 J ya mphamvu; pa 2 m / s mphamvu ya moto imadutsa 2 koma mphamvu imadutsa 4.
Kodi ndingapeze bwanji liwiro la galimoto kuchokera ku mphamvu ya kinetic yomwe ndikudziwa?
Kusintha kwa v = √ (2 · KE / m). Set "kupeza" kuti galimoto, kulowa mphamvu ndi maselo, ndi calculator amachita izo — kwachitsanzo 9 J mu 2 kg maselo amapatsa √ (18 / 2) = 3 m / s.
N'chifukwa chiyani kuletsa maulendo akuwonjezeka mofulumira ndi kuthamanga?
Breki zimachotsa mphamvu ya kinetic pa mtengo wokhazikika, ndipo mphamvuyo imawonjezeka ndi kuzungulira kwa liwiro. Kudutsa kwa liwiro kumadutsa mphamvu yowononga, ndipo mtunda wothamanga umadutsanso.
Kodi ndiyenera kugwiritsa ntchito zida ziti?
Mutha kugwiritsa ntchito mayunitsi a SI - masa m'makilogalamu ndi kufulumira m'mita pa mphindi - kuti mudziwe mphamvu m'majoule. Ngati muli ndi km / h, gawana ndi 3.6 kuti musinthe m / s.
API — kugwiritsa ntchito izi calculator kuchokera code
Kuti mudziwe zambiri, pitani ku www.json.org/json.html. Kuti mudziwe zambiri, pitani ku www.json.org/json.html. Chomweko chilichonse chimene mumasiya chimagwiritsa ntchito mfundo yoyamba yomweyi yomwe tsambali limagwiritsa ntchito; mfundo yosadziwika ndi 400, siyiyenera kukhala zero yosadziwika. Onani zonse API docs →
Chithunzi
GET https://calculator.free/api/v1/kinetic-energy/curl
curl "https://calculator.free/api/v1/kinetic-energy/?solve=energy&mass=2&velocity=3"JavaScript fetch()
const r = await fetch(
"https://calculator.free/api/v1/kinetic-energy/?" + new URLSearchParams({
"solve": "energy",
"mass": "2",
"velocity": "3"
}));
const data = await r.json();
console.log(data.results);Zimenezi ndi zowerengera zokhudzana ndi malangizo amtundu uliwonse, si zokhudzana ndi ndalama, zamoyo kapena zokhudzana ndi ndalama.