Mphamvu yachibadwa - mavuto ndi mayankho

Mavuto omwe adathetsedwa mu malamulo a Newton oyendetsera zinthu - Mphamvu yachibadwa 

1. Chinthu chomwe chili patebulo, chomwe chawonetsedwa pachithunzi chili pansipa. Kulemera kwa chinthucho ndi 1 kg. Kuthamanga kwa mphamvu yokoka ndi 9.8 m/s 2 . Dziwani mphamvu yachibadwa yomwe imagwiritsidwa ntchito pa chinthucho pafupi ndi tebulo.

Mphamvu-yachizolowezi-–-mavuto-ndi-mayankho-1-1

Zodziwika:

Kulemera (m) = 1 kg

Kuthamanga kwa mphamvu yokoka (g) = 9.8 m/s 2

Kulemera (w) = mg = (1 kg)(9.8 m/s 2 ) = 9.8 kg m/s 2 = 9.8 Newtons

Kufunidwa: mphamvu yachibadwa (N)

Yankho:

Mphamvu yachibadwa - mavuto ndi mayankho 2

Chinthucho chili patebulo, kotero mphamvu yonse pa chinthucho ndi zero (lamulo loyamba kapena lachiwiri la Newton). Kulemera kwa chinthucho kumagwira ntchito molunjika pansi, kulowera pakati pa Dziko Lapansi. Payenera kukhala mphamvu ina pa chinthucho kuti igwirizane ndi mphamvu yokoka . Chinthucho chili patebulo, kotero kuti tebulo ligwiritse ntchito mphamvu iyi yokwera. Mphamvu yomwe imagwiritsidwa ntchito ndi tebulo nthawi zambiri imatchedwa mphamvu yachibadwa (N). Yachibadwa imatanthauza perpendicular.

Sankhani njira yopita mmwamba ngati njira yabwino ya y. Mphamvu yonse pa chinthucho ndi:

∑ Fy = 0

N – w = 0

N = w

N = mg

N = 9.8 Newton

Mphamvu yachibadwa pa chinthucho, yomwe imachokera pa tebulo ndi 9.8 N mmwamba.

[irp]

2. Zinthu ziwiri zomwe zili patebulo. Kulemera kwa chinthu 1 (m 1 ) = 1 kg, kulemera kwa chinthu 2 (m 2 ) = 2 kg, kuthamanga chifukwa cha mphamvu yokoka (g) = 9.8 m/s 2. Dziwani kukula ndi njira ya mphamvu yachibadwa yomwe imagwiritsidwa ntchito ndi m 2 pa m 1 ndi mphamvu yachibadwa yomwe imagwiritsidwa ntchito ndi tebulo pa m 2.

Mphamvu yachibadwa - mavuto ndi mayankho 3

Anakonza

Mphamvu yachibadwa - mavuto ndi mayankho 4

Zodziwika:

Kulemera kwa chinthu 1 (m1 ) = 1 kg

Kulemera kwa chinthu 2 (m2 ) = 2 kg

Kuthamanga kwa mphamvu yokoka (g) = 9.8 m/s 2

Kulemera kwa chinthu 1 (w 1 ) = m 1 g = (1)(9.8 m/s 2 ) = 9.8 kg m/s 2 = 9.8 Newtons

Kulemera kwa chinthu 2 (w 2 ) = m 2 g = (2)(9.8 m/s 2 ) = 19.6 kg m/s 2 = 19.6 Newtons

Akufuna: N 1 ndi N 2

Yankho:

(a) Mphamvu yachibadwa yogwiritsidwa ntchito ndi m 2 kupita ku m 1 (N 1 )

N 1 = w 1 = 9.8 Newton

Njira ya N1 ili mmwamba.

(b) Mphamvu yachibadwa yomwe imachokera patebulo pa m 2 (N 2 )

N 2 = w 1 + w 2 = 9.8 Newtons + 19.6 Newtons = 29.4 Newtons

Njira ya N2 ili mmwamba.

[irp]

3. Chinthu chomwe chili patebulo. Kulemera kwa chinthucho ndi 2 kg, kuthamanga chifukwa cha mphamvu yokoka ndi 9.8 m/s 2 . Kukula kwa mphamvu F ndi 10 Newtons. Pezani kukula ndi njira ya mphamvu yachibadwa yomwe ikugwiritsidwa ntchito patebulo pa chinthucho.

Mphamvu yachibadwa - mavuto ndi mayankho 5

Anakonza

Mphamvu yachibadwa - mavuto ndi mayankho 6

Zodziwika:

Kulemera kwa chinthu (m) = 2 kg

Kuthamanga chifukwa cha mphamvu yokoka (g) = 9.8 m/s 2

Kulemera (w) = mg = (2 kg)(9.8 m/s 2 ) = 19.6 kg m/s 2 = 19.6 Newtons

Mphamvu F (F) = 10 Newton

Kufunidwa : kukula ndi malangizo a mphamvu yachibadwa (N)

Yankho:

mphamvu yachibadwa imayang'ana mmwamba.

Kukula kwa mphamvu yachibadwa:

∑ F = 0

N – F – w = 0

N = F + w

N = 10 Newtons + 20 Newtons

N = 30 Newton

[irp]

4. Chinthu chomwe chili patebulo. Kulemera kwa chinthucho ndi 1 kg, kuthamanga chifukwa cha mphamvu yokoka ndi 9,8 m/s 2 , mphamvu F 1 ndi 10 N ndipo mphamvu F 2 ndi 20 N. Dziwani kukula ndi komwe mphamvu yachibadwa yomwe tebulo limagwiritsa ntchito pa chinthucho imachokera. g = 9.8 m/s 2

Mphamvu yachibadwa - mavuto ndi mayankho 7

Anakonza

Mphamvu yachibadwa - mavuto ndi mayankho 8

Zodziwika:

Kulemera (m) = 1 kg

Kuthamanga kwa mphamvu yokoka (g) = 9.8 m/s 2

Kulemera (w) = mg = (1 kg)(9.8 m/s 2 ) = 9.8 kg m/s 2 = 9.8 Newtons

F1 = 10 Newtons

F2 = 20 Newtons

Kufunidwa: kukula ndi malangizo a mphamvu yachibadwa (N)

Yankho:

Mphamvu yachibadwa imalowera mmwamba.

Kukula kwa mphamvu yachibadwa:

∑ F = 0

N – F 2 – w + F 1 = 0

N = F 2 + w – F 1

N = 20 Newtons + 9.8 Newtons – 10 Newtons

N = 19.8 Newton

[irp]

5. Kulemera kwa chinthu (m) = 2 kg, kufulumira kwa mphamvu yokoka (g) = 9.8 m/s 2 , ngodya = 30 o . Pezani kukula ndi njira ya mphamvu yachibadwa yomwe imagwiritsidwa ntchito pa chinthucho.

Mphamvu yachibadwa - mavuto ndi mayankho 9

Yankho:

Mphamvu yachibadwa - mavuto ndi mayankho 10

w ndi kulemera, w x ndi gawo lopingasa la kulemera, w y ndi gawo loyima la kulemera, N ndi mphamvu yachibadwa.

Zodziwika:

kulemera (m) = 2 kg

kufulumira kwa mphamvu yokoka (g) = 9.8 m/s 2

kulemera (w) = mg = (2 kg)(9.8 m/s 2 ) = 19.6 kg m/s 2 = 19.6 Newtons

w x = w sin 60 o = (19.6 N)(0.5) √ 3 = 9.8 √ 3 Newtons

w y = w cos 60 = (19.6 N)(0.5) = 9.8 Newtons

Kufunidwa: mphamvu yachibadwa (N)

Yankho:

∑ F = 0

N – w y = 0

N = w y

N = 9.8 Newton

[irp]

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  1. Kulemera ndi kulemera
  2. mphamvu yachibadwa
  3. Lamulo lachiwiri la Newton la kayendedwe
  4. Mkangano mphamvu
  5. Kuyenda pamwamba mopingasa popanda mphamvu yokangana
  6. Kuyenda kwa matupi awiri omwe ali ndi kuthamanga komweko pamalo opingasa ndi mphamvu yokangana
  7. Kuyenda pa ndege yopendekeka popanda mphamvu yokangana
  8. Kuyenda pa ndege yokhotakhota ndi mphamvu yokangana
  9. Kuyenda mu elevator
  10. Kuyenda kwa matupi kumalumikizidwa ndi zingwe ndi ma pulleys
  11. Matupi awiri omwe ali ndi kukula kofanana kwa kuthamanga
  12. Kuzungulira makona osalala - mphamvu ya kayendedwe kozungulira
  13. Kuzungulira mkombero wozungulira - mphamvu ya kuyenda kozungulira
  14. Kuyenda kofanana mozungulira mopingasa
  15. Mphamvu yapakati yozungulira yofanana

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