1. Igrafu yamandla (F) ngokumelene nokunwebeka (x ) iboniswe esithombeni esingezansi. Thola i-spring constant!
Isixazululo
k = F/x
F = amandla (iNewton)
k = i-spring constant (i-Newton/imitha)
x = ushintsho lobude (amamitha)
I-constant yasentwasahlobo:
k = 10 / 0.02 = 20 / 0.04
k = 500 N/m
[irp]
2. Thola ukuthi i -spring constant ikuphi.
Isixazululo
I-constant yasentwasahlobo:
k = F/x
k = 5 / 0.01 = 10 / 0.02 = 15 / 0.03 = 20 / 0.04
k = 500 N/m
[irp]
3. Intwasahlobo A inobude bokuqala obungu-60 cm kanti intwasahlobo B inobude bokuqala obungu-90 cm. Intwasahlobo A inobude obungu-100 N/m, intwasahlobo B inobude obungu-200 N/m. Isilinganiso sokushintsha kobude bentwasahlobo A nokushintsha kobude bentwasahlobo B…
Kwaziwa:
I-constant yentwasahlobo A (k A ) = 100 N/m
I-Constant yentwasahlobo B (k B ) = 200 N/m
Amandla entwasahlobo A (F A ) = F
Amandla entwasahlobo B (F B ) = F
Kufunwa: Δl A : Δl B
Isixazululo:
Ifomula yomthetho kaHooke:
Δl = F / k
Δl = ushintsho lobude, F = amandla, k = okungaguquki
Ushintsho lobude bentwasahlobo A:
Δl A = F A / k A = F / 100
Ushintsho lobude bentwasahlobo B:
Δl B = F B / k B = F / 200
Isilinganiso sokushintsha kobude bentwasahlobo A nokushintsha kobude bentwasahlobo B:
Δl A : Δl B
F/100 : F/200
1/100: 1/200
1/1: 1/2
2: 1
[irp]
4. Intambo ye-nylon enobude bokuqala obungu-20 cm, idonswa ngamandla angu-10 N. Ushintsho lobude bentambo luyi-2 cm. Thola ubukhulu bamandla uma ushintsho lobude luyi-6 cm.
Kwaziwa:
Amandla (F) = 10 N
Ushintsho lobude ( Δl ) = 2 cm = 0.02 m
Okufunwayo: ubukhulu bamandla (F) uma i-Δl = 0.06 m.
Isixazululo:
Okuhlala njalo:
k = F / Δl
k = 10 / 0.02 = 500 N/m
Ubukhulu bamandla (F) uma i-Δl = 0.06 m :
F = kx
F = (500)(0.06)
F = 30N
[irp]
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