Ka mālama ʻana i ka momentum linear
ʻŌlelo ke kānāwai o ka mālama ʻana i ka momentum linear inā ʻaʻohe ikaika o waho e hana ana ma luna o ʻelua mau mea e kuʻi ana, ua like ka momentum o nā mea ma mua o ke kuʻi ʻana me ka momentum o nā mea ma hope o ke kuʻi ʻana.
p1 + p2 =p1 ' + p2 ' ………………….. Kaulike 1.4
m1 v1 +m2 v2 = m1 v1 ' + m2 v2 '
Inā pili pū nā mea ʻelua ma hope o ke kuʻi ʻana,
m1 v1 +m2 v2 = (m1 +m2 ) v'
kahi: m1 = ka nuipa o ka mea 1, m2 = ka nuipa o ka mea 2, v1 = ka wikiwiki o ka mea 1 ma mua o ke kuʻi ʻana, v2 = ka wikiwiki o ka mea 2 ma mua o ke kuʻi ʻana, v1 ' = ka wikiwiki o ka mea 1 ma hope o ke kuʻi ʻana, v2 ' = ka wikiwiki o nā mea 2 ma hope o ke kuʻi ʻana, v' = ka wikiwiki o nā mea ʻelua ma hope o ke kuʻi ʻana
He hōʻailona maikaʻi ko v a i ʻole v' inā neʻe ka mea i ka ʻākau a he hōʻailona maikaʻi ʻole inā neʻe ka mea i ka hema. Inā ʻaʻole ʻike ʻia nā kuhikuhi neʻe o nā mea, akā neʻe nā mea ʻelua i nā kuhikuhi ʻē aʻe, he hōʻailona maikaʻi ko v a i ʻole v' ʻoiai he hōʻailona maikaʻi ʻole kekahi. Inā neʻe nā mea ʻelua i ke kuhikuhi like, ua like ke kuhikuhi o v a i ʻole v' o nā mea ʻelua. Hōʻike ka hōʻailona maikaʻi a maikaʻi ʻole paha i ke kuhikuhi o ka neʻe ʻana o ka mea.
20 mau nīnau manaʻo a me nā pane e pili ana i ka mālama ʻana i ka momentum linear:
1. Nīnau: He aha ka momentum linear? pane mai: ʻO ka momentum linear, i kapa pinepine ʻia ʻo momentum, ʻo ia ka huahana o ka nuipa o kahi mea a me kona wikiwiki. He nui vector ia a ua hōʻike ʻia e ��=���.
2. Nīnau: Pehea e pili ai ka mālama ʻana o ka momentum linear i nā collisions? pane mai: Ua like ka huina o ka momentum o kahi ʻōnaehana ma mua o kahi kuʻi ʻana me ka huina o ka momentum ma hope o ke kuʻi ʻana, inā ʻaʻohe mana o waho e hana ma ka ʻōnaehana.
3. Nīnau: I loko o nā kūlana hea e mālama ʻia ai ka momentum linear? pane mai: Mālama ʻia ka momentum linear ma nā kūlana āpau kahi i loaʻa ai ka ikaika waho upena ma ka ʻōnaehana i ka ʻole.
4. Nīnau: Pehea e neʻe ai kahi rocket i mua i ka lewa ke ʻole ka ikaika o waho e hana ana ma luna? pane mai: Hoʻokuʻu aku kahi rocket i nā kinoea i hope, a ma muli o ka mālama ʻana i ka momentum, neʻe ka rocket i mua. Noho like a kūʻē ka momentum o nā kinoea i kipaku ʻia a me ka rocket, e mālama ana i ka momentum net o ka ʻole.
5. Nīnau: No ke aha e milo wikiwiki ai ka mea holo hau i ka wā e huki ai lākou i ko lākou mau lima i loko? pane mai: Ke huki ka mea heʻe hau i ko lākou mau lima i loko, hoʻemi lākou i ko lākou manawa o ka inertia. No ka mālama ʻana i ka momentum angular, pono e hoʻonui i ko lākou wikiwiki rotational.
6. Nīnau: Hiki ke mālama ʻia ka momentum inā aia kahi ikaika o waho e hana ana ma kahi ʻōnaehana? pane mai: No ka lōʻihi o nā hana a ka ikaika o waho, ʻaʻole e mālama ʻia ka momentum. Eia nō naʻe, i nā manawa pōkole, hiki ke lilo ka loli i mea liʻiliʻi a ua mālama ʻia ka momentum.
7. Nīnau: He aha ka hoʻokuʻi inelastic e pili ana i ka momentum? pane mai: I loko o kahi kuʻi ʻana inelastic, mālama ʻia ka momentum, akā ʻaʻole ka ikehu kinetic. Hiki i nā mea ke pili pū a hoʻololi paha i ke ʻano i ka wā o ke kuʻi ʻana.
8. Nīnau: Pehea e hiki ai i kahi ʻōnaehana ke loaʻa ka ikaika me ka ʻole o ka ikaika o waho? pane mai: ʻAʻole hiki i kahi ʻōnaehana ke loaʻa ka momentum me ka ʻole o kahi ikaika o waho. Hōʻoia ke kānāwai ʻekolu o Newton e loaʻa i nā hana i loko o kahi ʻōnaehana nā hopena like a kū'ē, no laila ʻaʻole i loli ka momentum net.
9. Nīnau: He aha ka impulse a me kona pilina me ka momentum? pane mai: ʻO ka impulse ka loli o ka momentum o kahi mea. Hāʻawi ʻia ia e ka huahana o ka ikaika e hana ana ma luna o kahi mea a me ka lōʻihi o ka manawa e hana ai. He nui vector nō hoʻi ka impulse.
10. Nīnau: Pehea e hoʻohana ai nā ʻeke ea i loko o nā kaʻa i ka manaʻo o ka momentum? pane mai: Hoʻonui nā ʻeke ea i ka manawa e kū ai kahi ulia. Hoʻemi kēia i ka ikaika i ʻike ʻia e ka poʻe noho, e hoʻololi mālie ana i ka momentum a hōʻemi i ka ʻeha.
11. Nīnau: Pehea ka ʻokoʻa o ka lele ʻana mai ka paʻa ʻana ma ke ʻano o ka mālama ʻana i ka momentum i nā kuʻi ʻana? pane mai: Ma nā hihia ʻelua, mālama ʻia ka momentum. Eia nō naʻe, ke lele nā mea, hiki iā lākou ke hoʻololi i ka ikehu kinetic hou aʻe ma mua o ka wā e pili pū ai lākou.
12. Nīnau: Hiki i kahi mea hoʻokahi ke mālama i ka momentum? pane mai: Mālama ʻia ka momentum o kahi mea i hoʻokaʻawale ʻia ke ʻole e hana ʻia e kahi ikaika o waho.
13. Nīnau: Pehea e pili ai ka momentum i ke kānāwai ʻekolu o Newton? pane mai: ʻŌlelo ke kānāwai ʻekolu o Newton he like a kū'ē ka hopena o kēlā me kēia hana. Hōʻoia kēia i ke kaulike o nā loli momentum ma waena o nā mea e launa pū ana, e alakaʻi ana i ka mālama ʻana i ka momentum.
14. Nīnau: No ke aha e hoʻihoʻi ai ka pū i ka pōkā i kī ʻia mai ka pū? pane mai: I ka loaʻa ʻana o ka momentum i mua o ka pōkā, loaʻa i ka pū ka nui like o ka momentum i hope ma muli o ka mālama ʻana i ka momentum.
15. Nīnau: Hiki i ka momentum ke lilo i ʻole i loko o kahi ʻōnaehana me nā mea e neʻe ana? pane mai: ʻAe, inā ʻole ka huina vector o nā manawa pākahi āpau. No ka laʻana, ʻelua mau mea o ka nuipa like a me ka wikiwiki e neʻe ana i nā ʻaoʻao ʻē aʻe he momentum net ʻole.
16. Nīnau: Pehea e pili ai ke kikowaena o ka neʻe ʻana o ka nuipa i ka mālama ʻana i ka momentum? pane mai: Ua pili pono ka neʻe ʻana o ke kikowaena o ka nuipa o kahi ʻōnaehana i ka momentum holoʻokoʻa o ka ʻōnaehana. Inā ʻaʻohe mana o waho e hana, e neʻe ke kikowaena o ka nuipa ma ka wikiwiki mau.
17. Nīnau: Ua mālama mau ʻia ka momentum i nā pahū ʻana? pane mai: ʻAe, ua like ka huina momentum ma mua o ka pahū ʻana (ʻo ka maʻamau ʻole) me ka huina momentum ma hope, ʻoiai ke neʻe nei nā ʻāpana i nā ʻaoʻao like ʻole.
18. Nīnau: Pehea e hoʻohana ai nā mea pāʻani pool i nā loina mālama momentum? pane mai: I ke kuʻi ʻana i nā pōpō wai ʻauʻau, manaʻo nā mea pāʻani pehea e neʻe ai nā pōpō ma hope o ke kuʻi ʻana ma muli o ka mālama ʻana i ka momentum, e ʻae ana iā lākou e wānana i nā hopena pana.
19. Nīnau: No ke aha i kū ʻole ai ke kaʻa ma hope o ka pio ʻana o ka ʻenekini? pane mai: Ma muli o kona momentum. Inā ʻaʻole i hana ʻia e kahi ikaika o waho (e like me ka friction), e hoʻomau ia i ka neʻe ʻana.
20. Nīnau: I loko o kahi ʻōnaehana ʻelua mea, inā piʻi ka momentum o kekahi mea, he aha ka mea e hana ai i ka momentum o kekahi? pane mai: E emi ana ka momentum o kekahi mea ʻē aʻe ma ka nui like ma ke kuhikuhi ʻē aʻe, e mālama ana i ka momentum holoʻokoʻa.
ʻO ka hoʻomaopopo ʻana i ka mālama ʻana o ka momentum linear he mea nui ia i ka physics a he mau noi kona mai nā mechanics kumu a hiki i nā kahua hoʻonaʻauao holomua.
