Ka wehewehe ʻana o ka neʻe laina ʻaʻole like
ʻO ka neʻe laina ʻole like ka neʻe ʻana ma ka wikiwiki mau. I nā huaʻōlelo ʻē aʻe, ʻo ka neʻe laina ʻole like = ka neʻe ʻana me ka hoʻonui ʻana o ka wikiwiki he mau a ʻo ke kuhikuhi o ka wikiwiki he mau. ʻO ke kuhikuhi o ka wikiwiki he mau = ke kuhikuhi o ka wikiwiki he mau = ke kuhikuhi o ka neʻe ʻana he mau = ke kuhikuhi o ka neʻe ʻana he mau = neʻe ka mea ma kahi laina pololei. ʻO ka nui o ka wikiwiki mau ʻo ia hoʻi ka nui o ka wikiwiki a i ʻole ka wikiwiki e piʻi mau ana.
Laʻana mua:
Ua hoʻomaha mua kahi mea. Hoʻokahi kekona ma hope, neʻe ka mea i ka wikiwiki o 2 m/s. ʻElua kekona ma hope, neʻe ka mea i ka wikiwiki o 4 m/s. ʻEkolu kekona ma hope, neʻe ka mea i ka wikiwiki o 6 m/s. ʻEhā kekona ma hope, neʻe ka mea i ka wikiwiki o 8 m/s. A pēlā aku...
I kēlā me kēia 1 kekona, piʻi ka wikiwiki o ka mea ma 2 m/s. Loaʻa i ka mea kahi wikiwiki mau o 2 m/s no 1 kekona a i ʻole 2 m/s no kekona a i ʻole 2 m/s 2.
ʻO ka laʻana lua:
Neʻe mua kahi mea i ka wikiwiki o 10 m/s. Hoʻokahi kekona ma hope.
Ua hoʻemi ʻia ka wikiwiki i 9 m/s. ʻElua kekona ma hope, ua emi ka wikiwiki i 8 m/s. ʻEkolu kekona ma hope, ua hoʻemi ʻia ka wikiwiki i 7 m/s. ʻEhā kekona ma hope, ua hoʻemi ʻia ka wikiwiki i 6 m/s. A pēlā aku ... I kēlā me kēia 1 kekona, ua emi ka wikiwiki o ka mea ma 1 m/s. Loaʻa i ka mea ka deceleration mau o 1 m/s no 1 kekona a i ʻole 1 m/s no kekona a i ʻole 1 m/ s2.
Ka hoʻohālikelike o ka neʻe laina ʻaʻole like
ʻEkolu mau ʻano hoʻohālikelike i hoʻohana pinepine ʻia:
vt = v o + ma
d = v o t + 1/2 ma 2
vt 2 = v o 2 + 2 ad
v o = ka wikiwiki mua (mika/kekona), v t = ka wikiwiki hope loa (mika/kekona), a = ka wikiwiki (mika/kekona huinahā), t = ka wā manawa (kekona), d = ka mamao (mika).
Laʻana pilikia 1:
ʻO kahi ʻāpana, i ka wā hoʻomaha mua, a laila ʻike ʻo ia i ka wikiwiki mau o 2 m/s 2 no 10 kekona. E helu i ka wikiwiki hope loa o ka ʻāpana.
pāʻoihana:
Me ka ʻole o ka hoʻohālikelike:
ʻO ka wikiwiki (a) = 2 m/s 2 ʻo ia hoʻi ka piʻi ʻana o ka wikiwiki (v) ma 2 m/s i kēlā me kēia 1 kekona. Ma hope o 2 kekona, ʻo v = 4 m/s. Ma hope o 10 kekona, ʻo v = 20 m/s.
Ke hoʻohana nei i ka hoʻohālikelike:
ʻIke ʻia: v o = 0 m/s (ʻāpana i ka hoʻomaha), a = 2 m/s 2 , t = 10 s
Makemake ʻia: v t
vt = v o + at = 0 + (2)(10) = 20 m/s
Laʻana pilikia 2:
Neʻe kekahi kaʻa ma ke ala pololei me ka wikiwiki o 60 km/h. No ka mea aia kahi mea keakea, hoʻopaʻa ka mea hoʻokele, no laila he 10 m/s2 ka hoʻēmi ʻana o ke kaʻa. He aha ka mamao e hele ai ke kaʻa a hiki i kona kū ʻana ma hope o ka pau ʻana o ka hoʻopaʻa ʻana?
ʻIke ʻia:
v o = 60 km/h = 60(1000 m)/3600 s = 17 m/s
vt = 0 m/s (kū ke kaʻa )
2a = – 10 m/s
Makemake ʻia: mamao (d)
pāʻoihana:
vt 2 = v o 2 + 2 ad
(0) 2 = (17) 2 + 2(-10) d
0 = 289 – 20 lā
289 = 20 lā
d = 289 : 20 = 14.45 mika
Laʻana pilikia 3:
ʻO ka pakuhi ma lalo nei he pakuhi neʻe laina ʻaʻole like, hōʻike ʻo v i ka wikiwiki, a hōʻike ʻo t i ka manawa. ʻO ka nui o ka wikiwiki o nā mea i hoʻokumu ʻia ma ka pakuhi ʻo …
Laʻana pilikia 4:
Hoʻopuka ka neʻe ʻana o ke kaʻa i kahi pakuhi o ka wikiwiki (v) vs ka manawa (t) e like me ka mea i hōʻike ʻia ma ke kiʻi ma ka ʻaoʻao. Inā ʻo ka ʻāpana ma lalo o ka pakuhi (ʻāpana i aka ʻia) he 48 m, a laila ʻo ka wikiwiki o ke kaʻa he …
ʻĀpana i hoʻomalulu ʻia = ka mamao holoʻokoʻa = 48 mika
v o = 8 m/s, v t = 16 m/s, t = 1 m/s
vt = v o + ma
16 = 8 + a (1)
a = 16 – 8
a = 8 m/s 2
or
Nā nīnau manaʻo a me nā pane e pili ana i ka neʻe laina ʻole
- He aha ka neʻe laina ʻole like?
ʻO ka neʻe laina ʻole e pili ana i ka neʻe ʻana o kahi mea ma kahi laina pololei me ka wikiwiki a i ʻole ka wikiwiki e loli ana.
- Pehea e hōʻike ʻia ai ka neʻe laina ʻaʻole like ma ka pakuhi mamao-manawa?
Hōʻike ʻia ka neʻe laina ʻaʻole like e kahi laina piʻo ma ka pakuhi mamao-manawa.
- He aha ke kuleana o ka hoʻolalelale ʻana i ka neʻe laina like ʻole?
He mea nui ka wikiwiki i ka neʻe laina ʻole. ʻO ia ka wikiwiki o ka loli ʻana o ka wikiwiki i ka hala ʻana o ka manawa.
- Pehea e hiki ai i kekahi ke ʻike i ka neʻe laina ʻole like ma ka pakuhi wikiwiki-manawa?
Hōʻike ʻia ka neʻe laina ʻole like e kahi laina ʻaʻole pae (e hoʻonui ana a e emi ana paha) ma ka pakuhi wikiwiki-manawa, e hōʻike ana e loli ana ka wikiwiki i ka hala ʻana o ka manawa.
- He aha ke anakahi o ka hoʻolalelale ʻana i loko o ka International System of Units (SI)?
ʻO ke anakahi o ka hoʻolalelale ʻana i ka ʻōnaehana SI he mika no kekona kuea (m/s²).
- He aha ke ʻano hana no ka neʻe ʻana i ka neʻe laina ʻaʻole like, i hāʻawi ʻia i ka wikiwiki mua, ka wikiwiki, a me ka manawa?
ʻO ke ʻano hana hoʻohālikelike ʻo s = ut + ½at², kahi ʻo s ka neʻe ʻana, ʻo u ka wikiwiki mua, ʻo a ka wikiwiki, a ʻo t ka manawa.
- Hiki i ka neʻe ʻana o 's' ke maikaʻi ʻole i ka neʻe laina ʻole like?
ʻAe, hiki i ka neʻe ʻana o nā 's' ke maikaʻi ʻole i ka neʻe laina like ʻole. E hōʻike ana kēia i ka neʻe ʻana i ke kuhikuhi ʻē aʻe i ke kuhikuhi maikaʻi i koho ʻia.
- Hiki anei i kahi mea ma ka neʻe laina ʻole ke kū a hiki i kahi kū?
ʻAe, hiki i kahi mea ma ka neʻe laina ʻole ke kū inā hana kona wikiwiki i kahi ʻē aʻe i ke kuhikuhi o ka neʻe ʻana a hoʻemi nui i ka wikiwiki o ka mea i ka ʻole.
- He aha ke ʻano hana no ka wikiwiki hope loa i ka neʻe laina ʻaʻole like, i hāʻawi ʻia i ka wikiwiki mua, ka wikiwiki, a me ka manawa?
ʻO ke ʻano hana hoʻohālikelike ʻo v = u + at, kahi ʻo v ka wikiwiki hope loa, ʻo u ka wikiwiki mua, ʻo a ka wikiwiki, a ʻo t ka manawa.
- Pehea e pili ai ka manaʻo o ka jerk i ka neʻe laina ʻaʻole like?
ʻO Jerk ka wikiwiki o ka loli o ka wikiwiki. I ka neʻe laina ʻaʻole like, inā ʻaʻole mau ka wikiwiki a loli i ka hala ʻana o ka manawa, a laila aia ka jerk.
