Makamashin ƙarfin nauyi - matsaloli da mafita

1. Jiki mai nauyin kilogiram 1 ya faɗi daga hutawa, daga tsayin mita 10.

Ƙayyade:

(a) Aikin da aka yi da ƙarfin nauyi

(b) Canjin kuzarin ƙarfin nauyi

Saurin gudu saboda nauyi (g) = 10 m/s ²

An sani:

Nauyi (m) = 1 kg

Tsawo (h) = mita 10

Saurin gudu saboda nauyi (g) = 10 m/s ²

Nauyi (w) = mg = (1 kg)(10 m/s ² ) = 10 N

Magani:

(a) Aikin da aka yi da ƙarfin nauyi

W = w = mgh

W = (1)(10)(10) = Joule 100

(b) Canjin kuzarin ƙarfin nauyi

Canjin makamashin ƙarfin nauyi daidai yake da aikin da nauyi ke yi.

Δ EP = Joule 100

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2. Wani abu mai girman N 10 yana zamewa ƙasa a kan jirgin da ya karkata santsi tare da mita 2. Kayyade aikin da aka yi ta ƙarfin nauyi!

An sani:

nauyi (w) = 10 N

w _x = w zunubi θ = (10) (zunubi 30 ^o ) = (10) (0.5) = 5 N

d = 2 m

Saurin gudu saboda nauyi (g) = 10 m/s ²

Ana so: aikin da aka yi da ƙarfin nauyi

Magani:

W = F d = w _x d = (5)(2) = Joules 10

Madadin mafita:

Zunubi 30 ^o = h / d

0.5 = h / 2

h = (0.5)(2)

h = 1m

Ana yin aikin ne ta hanyar ƙarfin nauyi;

W = F d = wh = (10 N)(1 m) = 10 N m = Joules 10

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3. Abu mai nauyin gram 1,500 a mita 20 sama da ƙasa , ya faɗi ƙasa kyauta. Menene ƙarfin ƙarfin nauyi na abu. Saurin nauyi saboda nauyi shine 10 m/s ².

An sani:

Saurin gudu saboda nauyi (g) = 10 m/s ²

Nauyi (m) = gram 1500 = kilogiram 1500/1000 = kilogiram 1.5

Tsawo (h) = mita 20

Ana so: Ƙarfin ƙarfin nauyi

Magani:

PE = mgh = (1.5 kg)(10 m/s ² )(20 m) = 300 kg m ² /s ² = 300 Joules

4. Dangane da hoton da ke ƙasa, idan nauyin abu na 1 shine kilogiram 2 kuma nauyin abu na 2 shine kilogiram 4, kwatanta yuwuwar kuzarin abu na 1 da abu na 2 shine …..

An sani:

Nauyin abu 1 (m₁) = 2 kilogiram

Nauyin abu 2 (m2 ₎ = kilogiram 4

Tsawo 1 (awa ₁ ) = mita 12

Tsawo 2 (awa ₂ ) = mita 9

Ana so: Kwatanta kuzarin da ke akwai na abu na 1 da abu na 2

Magani:

PE = mgh

m = nauyi (naúrar ƙasa da ƙasa ita ce kilogiram, a takaice dai kg)

g = hanzari saboda nauyi (naúrar ƙasa da ƙasa mita a kowace daƙiƙa murabba'i ne, an taƙaita shi m/s ² )

h = tsayi (naúrar ƙasa da ƙasa ita ce mita, an taƙaita ta a takaice m)

PE = ƙarfin ƙarfin nauyi (naúrar ƙasa da ƙasa ita ce kg m ² / s ² ko Joule)

Ƙarfin ƙarfin nauyi na abu na 1:

EP ₁ = m ₁ gh ₁ = (2) (g) (12) = 24 g

Ƙarfin ƙarfin nauyi na abu na 2:

EP ₂ = m ₂ gh ₂ = (4) (g) (9) = 36 g

Kwatanta ƙarfin da ke cikin abu na 1 da abu na 2:

PE ₁ : PE ₂

24 g: 36 g

24: 36

12/24: 12/36

2: 3

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1. An yi aiki da ƙarfin gwiwa da mafita da matsaloli
2. Matsalolin makamashin aiki da kuma mafita da mafita
3. Matsaloli da mafita na ƙa'idodin makamashin aiki-injini
4. Matsalolin makamashi masu yuwuwar nauyi da mafita
5. Ƙarfin da ke tattare da matsalolin bazara masu laushi da mafita
6. Matsalolin wutar lantarki da mafita
7. Amfani da kiyaye makamashin injiniya don motsi na faɗuwa kyauta
8. Amfani da kiyaye makamashin injiniya don motsi sama da ƙasa a cikin motsi na faɗuwa kyauta
9. Amfani da kiyaye makamashin injiniya don motsi a kan saman da ke lanƙwasa
10. Amfani da kiyaye makamashin injiniya don motsi a kan jirgin sama mai karkata
11. Amfani da kiyaye makamashin injiniya don motsi mai ƙarfi