Dhibaatooyinka la xalliyay ee sharciyada dhaqdhaqaaqa ee Newton - Xoogga caadiga ah
1. Shay ku dul fadhiya miis, oo ka muuqda sawirka hoose. Cufka shaygu waa 1 kg. Dardargelinta cufisjiidadka waa 9.8 m/s 2. Go'aami xoogga caadiga ah ee shayga ku saaran miiska.
La yaqaan:
Cufnaanta (m) = 1 kg
Dardargelinta cufisjiidadka (g) = 9.8 m/s 2
Miisaanka (w) = mg = (1 kg)(9.8 m/s 2 ) = 9.8 kg m/s 2 = 9.8 Newtons
La doonayo: xoog caadi ah (N)
Xalka:
Shayga wuxuu ku nasanayaa miiska, sidaa darteed xoogga saafiga ah ee shayga waa eber (sharciga koowaad ama labaad ee Newton). Miisaanka shaygu wuxuu si toosan hoos ugu socdaa, isagoo u jeeda bartamaha Dhulka. Waa inuu jiraa awood kale oo shayga saaran si loo dheellitiro xoogga cufisjiidadka . Shayga ku nasanaya miiska, si miiska uu u sameeyo xooggan kor u kaca. Xoogga uu sameeyo miiska waxaa badanaa loo yaqaan xoog caadi ah (N). Caadiga macnaheedu waa toosan.
Dooro jihada kor u kaca sida jihada y ee togan. Xoogga saafiga ah ee shayga waa:
∑ F = 0
N – w = 0
N = w
N = mg
N = 9.8 Newton
Xoogga caadiga ah ee shayga, oo uu jadwalku sameeyo waa 9.8 N kor.
2. Laba shay oo ku dul fadhiya miis. Cufka shayga 1 (m 1 ) = 1 kg, cufka shayga 2 (m 2 ) = 2 kg, dardargelinta cufisjiidadka awgeed (g) = 9.8 m/s 2. Go'aami baaxadda iyo jihada xoogga caadiga ah ee m 2 ku bixiyo m 1 iyo xoogga caadiga ah ee uu jadwalku ku shaqeeyo m 2.
Solution
La yaqaan:
Cufka shayga 1 (m1 ) = 1 kg
Cufka shayga 2 (m2 ) = 2 kg
Dardargelinta cufisjiidadka (g) = 9.8 m/s 2
Miisaanka shayga 1 (w 1 ) = m 1 g = (1)(9.8 m/s 2 ) = 9.8 kg m/s 2 = 9.8 Newtons
Miisaanka shayga 2 (w 2 ) = m 2 g = (2)(9.8 m/s 2 ) = 19.6 kg m/s 2 = 19.6 Newtons
La Raadinayo: N 1 iyo N 2
Xalka:
(a) Xoogga caadiga ah ee m2 ku shaqeeya m1 ( N1 )
N 1 = w 1 = 9.8 Newton
Jihada N1 waa kor.
(b) Xoogga caadiga ah ee uu jadwalku ku sameeyo m 2 (N 2 )
N 2 = w 1 + w 2 = 9.8 Newtons + 19.6 Newtons = 29.4 Newtons
Jihada N2 waa kor.
3. Shay ku dul fadhiya miiska. Cufka shaygu waa 2 kg, dardargelinta cufisjiidadka awgeed waa 9.8 m/s 2. Cabbirka xoogga F waa 10 Newtons. Soo hel baaxadda iyo jihada xoogga caadiga ah ee uu shayga ku sameeyo.
Solution
La yaqaan:
Cufka shayga (m) = 2 kg
Dardargelinta cufisjiidadka awgeed (g) = 9.8 m/s 2
Miisaanka (w) = mg = (2 kg)(9.8 m/s 2 ) = 19.6 kg m/s 2 = 19.6 Newtons
Xoogga F (F) = 10 Newton
La Doonayo : baaxadda iyo jihada xoogga caadiga ah (N)
Xalka:
jihada xoogga caadiga ah waa kor.
Baaxadda xoogga caadiga ah:
∑ F = 0
N – F – w = 0
N = F + w
N = 10 Newtons + 20 Newtons
N = 30 Newton
4. Shay ku dul fadhiya miis. Cufka shaygu waa 1 kg, dardargelinta cufisjiidadka awgeed waa 9,8 m/s 2 , xoogga F 1 waa 10 N iyo xoogga F 2 waa 20 N. Go'aami baaxadda iyo jihada xoogga caadiga ah ee uu shayga ku sameeyo. g = 9.8 m/s 2
Solution
La yaqaan:
Cufnaanta (m) = 1 kg
Dardargelinta cufisjiidadka (g) = 9.8 m/s 2
Miisaanka (w) = mg = (1 kg)(9.8 m/s 2 ) = 9.8 kg m/s 2 = 9.8 Newtons
F1 = 10 Newtons
F2 = 20 Newtons
La Doonayo: baaxadda iyo jihada xoogga caadiga ah (N)
Xalka:
Jihada xoogga caadiga ah waa kor.
Baaxadda xoogga caadiga ah:
∑ 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
5. Cufka walaxda (m) = 2 kg, dardargelinta cuf-isjiidadka (g) = 9.8 m/s 2 , xagal = 30 o . Soo hel baaxadda iyo jihada xoogga caadiga ah ee lagu sameeyay walaxda.
Xalka:
w waa miisaan, w x waa qayb jiif ah oo miisaanka ah, w y waa qayb toosan oo miisaanka ah, N waa xoogga caadiga ah.
La yaqaan:
cufnaanta (m) = 2 kg
dardargelinta cufisjiidadka (g) = 9.8 m/s 2
Miisaan (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
La doonayo: xoog caadi ah (N)
Xalka:
∑ F = 0
N – w y = 0
N = w y
N = 9.8 Newton
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- Cufka iyo miisaanka
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- Sharciga labaad ee dhaqdhaqaaqa Newton
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