Fuafua le maualuga aupito maualuga o le gaioiga o le projectile

Foiaina o faʻafitauli i le gaioiga o le polo - fuafua le maualuga maualuga

1. O se polo lakapi ua kiki ua tu'ua le eleele i le tulimanu θ = 60 ^o ma le saoasaoa muamua o le laina faalava e 10 m/s. Fuafua le maualuga aupito maualuga! O le saoasaoa o le kalave e 10 m/ ^s².

Ua iloa:

Tulimanu (θ) = 60 ^o

Saosaoa muamua (v _o ) = 10 m/s

Mana'omia: Maualuga maualuga (h)

Fofo:

Vaega fa'atulagaina o le saoasaoa muamua:

sin 60 ^o = v _oy / v _o

v _oy = v _o agasala 60 ^o = (10)(agasala 60 ^o ) = (10)(0.5 √ 3 ) = 5 √ 3 m/s

Filifili le itu i luga e fai ma itu lelei ma le itu i lalo e fai ma itu leaga.

Ua iloa:

Fa'avavevaveina o le kalave (g) = -10 m/s ² (leaga i lalo)

Vaega fa'atulagaina o le saoasaoa muamua (vo _oy ) = + 5 √ 3 m/s (lelei i luga)

Saosaoa mulimuli i le maualuga aupito maualuga (v _ty ) = 0

Mana'omia: Maualuga maualuga (h)

Fofo:

vt ₂ = v _o ^{2 +} 2 gh

0 ² = ( 5 √ 3) ² + 2 (-10) itula

0 = 2 5 ( 3) – 20 itula

0 = 75 – 20 itula

75 = 20 itula

h = 75/20

h = 3.75 mita

O le maualuga maualuga e 3.75 mita.

2. O se tino ua fa'asolo i luga i se tulimanu e 30 ^o ma le itu faalava mai se fale e 20 mita le maualuga. O lona saoasaoa muamua e 4 m/s. Fuafua le maualuga aupito maualuga! O le fa'avavevaveina o le kalave e 10 m/ ^s2.

Ua iloa:

Tulimanu (θ) = 30 ^o

Maualuga muamua (h) = 20 mita

Saosaoa muamua (v _o ) = 4 m/s

Fa'avavevaveina o le kalave (g) = 10 m/s ²

Manaʻomia: Maualuga maualuga (h)

Fofo:

Vaega fa'atulagaina o le saoasaoa muamua:

sin 30 ^o = v _oy / v _o

v _oy = v _o agasala 30 ^o = (4)(agasala 30 ^o ) = (4)(0.5) = 2 m/s

Filifili le itu i luga e fai ma itu lelei ma le itu i lalo e fai ma itu leaga.

Ua iloa:

Fa'avavevaveina o le kalave (g) = -10 m/s ² (leaga i lalo)

Vaega fa'atulagaina o le saoasaoa muamua (v _oy ) = +2 m/s (lelei i luga)

Saosaoa mulimuli i le maualuga aupito maualuga (v _ty ) = 0

Mana'omia: Maualuga maualuga

Fofo:

Maualuga maualuga:

vt ₂ = v _o ^{2 +} 2 gh

0 ² = 2 ² + 2 (-10) itula

0 = 4 – 20 itula

4 = 20 itula

h = 4/20

h = 0.2 mita

O le maualuga maualuga e 0.2 mita + 20 mita = 20.2 mita.

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1. Fuafua le saoasaoa muamua i vaega fa'alava ma fa'atulagaina
2. Fuafua le si'itia fa'alava
3. Fuafua le maualuga aupito maualuga
4. Fuafua le va o taimi
5. Fuafua le tulaga o mea faitino
6. Fuafua le saoasaoa mulimuli