Isibonelo semibuzo evamile yamandla

Izibonelo Eziyi-9 Zemibuzo Yamandla Avamile

1. Ibhulokhi liphumule endaweni eyisicaba. Isisindo sebhulokhi (m) = 1 kg, ukusheshisa ngenxa yamandla adonsela phansi (g) = 10 m/s2Ubukhulu kanye nesiqondiso samandla avamile (N)...
Isibonelo samandla avamile 1Ingxoxo

I-Diketahui :
Isisindo sebhulokhi (m) = 1 kg
Ukusheshisa ngenxa yamandla adonsela phansi (g) = 10 m/s2
Amandla adonsela phansi (w) = mg = (1 kg)(10 m/s2) = 10 kg m/s2 = 10 uNewton
Kubuziwe ubukhulu kanye nesiqondiso samandla avamile (N)
Jawab :
Isiqondiso samandla avamile (N) siboniswe njengoba kuboniswe ngezansi.
Isibonelo samandla avamile 2
Ubukhulu bamandla avamile
UMthetho Wokuqala KaNewton uthi uma into iphumule, amandla aphumelayo asebenza entweni angu-0. Kukhona amandla aphansi (w). Njengoba ibhloko liphumule, kumele kube namandla akhuphukayo alinganisa isisindo, ngakho amandla aphumelayo angu-zero. Amandla akhuphukayo alinganisa isisindo amandla avamile (N). Ngokwezibalo:
Isibonelo samandla avamile 32. Womabili amabhlogo aphumule. Isisindo sebhloko 1 (m1) = 1 kg, isisindo sebhulokhi 2 (m2) = 2 kg, ukusheshisa ngenxa yamandla adonsela phansi (g) = 10 m/s2Ubukhulu kanye nesiqondiso samandla avamile asebenza kubhulokhi 1 (N)1) kanye nebhulokhi 2 (N2) kuyinto…
Isibonelo samandla avamile 4Ingxoxo
Isibonelo samandla avamile 5I-Diketahui :
Isisindo sebhulokhi 1 (m1) = 1 kg
Isisindo sebhulokhi 2 (m2) = 2 kg
Ukusheshisa ngenxa yamandla adonsela phansi (g) = 10 m/s2
Isisindo sebhulokhi 1 (w)1) = m1 g = (1)(10 m/s2) = 10 kg m/s2 = 10 uNewton
Isisindo sebhulokhi 2 (w)2) = m2 g = (2)(10 m/s2) = 20 kg m/s2 = 20 uNewton
Kubuziwe : N1 kanye no-N2
Jawab :
(a) Amandla avamile asebenza kubhulokhi 1 (N)1)
N1 = w1 = 10 uNewton
Isiqondiso N1 njengoba kusesithombeni esingenhla.
(b) Amandla avamile asebenza kubhulokhi 2 (N)2)
N2 = w1 +w2 = 10 AmaNewton + 20 AmaNewton = 30 AmaNewton
Isiqondiso N2 njengoba kusesithombeni esingenhla.

FUNDA FUTHI  Imithetho yezibalo ezibalulekile zefiziksi

3. Ibhulokhi liphumule. Isisindo sebhulokhi (m) = 2 kg, ukusheshisa ngenxa yamandla adonsela phansi (g) = 10 m/s2, amandla F = 10 Newton. Ubukhulu kanye nesiqondiso samandla avamile (N) asebenza ebhulokini…
Isibonelo samandla avamile 6Ingxoxo
Isibonelo samandla avamile 7I-Diketahui :
Isisindo sebhulokhi (m) = 2 kg
Ukusheshisa ngenxa yamandla adonsela phansi (g) = 10 m/s2
Amandla adonsela phansi (w) = mg = (2 kg)(10 m/s2) = 20 kg m/s2 = 20 uNewton
Amandla (F) = 10 Newton
Kubuziwe ubukhulu kanye nesiqondiso samandla avamile (N)
Jawab :
Indlela amandla avamile aqondiswa ngayo injengoba isesithombeni esingenhla.
Ubukhulu bamandla avamile:
Isibonelo samandla avamile 84. Ibhulokhi liphumule. Isisindo sebhulokhi (m) = 1 kg, ukusheshisa ngenxa yamandla adonsela phansi (g) = 10 m/s2, phoqelela u-F1 = 10 Newtons, F2 = 20 Newton. Ubukhulu kanye nesiqondiso samandla avamile (N) asebenza ebhulokini…
Isibonelo samandla avamile 9Ingxoxo
Isibonelo samandla avamile 10I-Diketahui :
Isisindo sebhulokhi (m) = 1 kg
Ukusheshisa ngenxa yamandla adonsela phansi (g) = 10 m/s2
Amandla adonsela phansi (w) = mg = (1 kg)(10 m/s2) = 10 kg m/s2 = 10 uNewton
F1 = 10 uNewton
F2 = 20 uNewton
Kubuziwe ubukhulu kanye nesiqondiso samandla avamile (N)
Jawab :

Isibonelo samandla avamile 11Indlela amandla avamile aqondiswa ngayo injengoba isesithombeni esingenhla.

5. Isisindo sebhulokhi (m) = 2 kg, ukusheshisa ngenxa yamandla adonsela phansi (g) = 10 m/s2, i-engeli = 60oUbukhulu kanye nesiqondiso samandla avamile (N) asebenza ebhulokini…
Isibonelo samandla avamile 12Ingxoxo
Isibonelo samandla avamile 13Isihlokwana:
w = amandla adonsela phansi, wx = ingxenye yamandla adonsela phansi ehambisana nobuso bendiza ethambekele, wy = ingxenye yamandla adonsela phansi aqonde ngqo endizeni ethambekele, N = amandla avamile, fk = amandla okungqubuzana kwe-kinetic.
I-Diketahui :
Isibonelo samandla avamile 14Kubuziwe ubukhulu kanye nesiqondiso samandla avamile (N)
Jawab :
Into ayimi, okusho ukuthi ayihambi ngendlela eqondile ebusweni bendiza ethambekele, ngakho-ke ngokomthetho wokuqala kaNewton, amandla avelayo ohlangothini oluqondile ebusweni bendiza ethambekele kumele alingane no-zero.
Kunamandla amabili asebenza ngokuqondile endaweni ethambekele, okungukuthi amandla e-wy kanye namandla avamile. Umphumela wala mandla amabili = 0. Ngokwezibalo:
Ngakho ubukhulu bamandla avamile bungama-Newton ayi-10.

FUNDA FUTHI  Ithelesikophu yomhlaba (ama-binoculars)

[IsiNgisi: Amandla avamile – izinkinga nezixazululo ]

6. Bheka isithombe sebhloko esingezansi! Uma isisindo sebhloko singama-2 kg kanti ukusheshisa ngenxa yamandla adonsela phansi kungu-10 ms −2 khona-ke amandla avamile abonwa yibhloko….

Amandla adonsela phansi kanye namandla avamileA. 25 N
B. 30 N
C. 33 N
D. 43 N
E. 45 N
Ingxoxo
Kuyaziwa ukuthi:
w = mg = (2 kg)(10 m/s2) = 20 kg m/s2 = 20 uNewton
F1 = 10 uN
F2 = 5 uN
Kubuziwe:
Amandla ajwayelekile (N) atholwa yibhlokhi?
Impendulo:

Amandla adonsela phansi kanye namandla avamile 2Amandla aphumela ohlangothini oluqondile yilawa:
F1 + w – F2 = 10 N + 20 N – 5 N = 25 N
Uma amandla aphansi = 25 N khona-ke amandla ajwayelekile = 25 N ngakho into ayimi.
Impendulo efanele ngu-A.

7. Uma amandla avamile asebenza ebhulokini angama-20 N, khona-ke ubukhulu kanye nesiqondiso samandla angaphandle asebenza ebhulokini...

Amandla adonsela phansi kanye namandla avamile 3A. 50 N nangaphansi
B. 30 N nangaphezulu
C. 30 N nangaphansi
D. 20 N nangaphezulu
E. 20 N nangaphansi
Ingxoxo
Kuyaziwa ukuthi:
Amandla adonsela phansi (w) = 40 N
Amandla ajwayelekile (N) = 20 N
Umbuzo: Ubukhulu kanye nesiqondiso samandla angaphandle buyini ukuze amandla avamile = 20 N?
Impendulo:
Ubukhulu bamandla avamile = 20 N kanye nesiqondiso samandla avamile siphezulu. Into iphumule, ngakho-ke isiqondiso samandla aphansi alinganisa amandla avamile kumele silingane no-20 N.
Ubukhulu bamandla adonsela phansi = 40 N kanye nesiqondiso sibheke phansi ngakho-ke kudingeka amandla angaphandle angu-20 N aqondiswa phezulu.
Impendulo efanele ngu-D.

FUNDA FUTHI  Umthetho kaGauss

8. Bheka isithombe esilandelayo sebhulokhi. Uma isisindo sebhulokhi singama-3 kg kanti ukusheshisa ngenxa yamandla adonsela phansi kungu- 10 ms −2 , khona-ke amandla avamile abonwa yibhulokhi angu-….

A. 27 NUkulingana kwezinhlayiya - Ukuhlolwa Kukazwelonke kwe-SMA MA Physics 2012 - 1
B. 30 N
C. 33 N
D. 43 N
E. 45 N

Ingxoxo
Kuyaziwa ukuthi:
w = mg = (3 kg)(10 m/s2) = 30 Newton (ukuqondisa phansi)
F1 = 5 N (isiqondiso esiya phansi)
F2 = 8 N (isiqondiso esibheke phezulu)
Umbuzo: Amandla ajwayelekile (N)?
Impendulo:

Ukulingana kwezinhlayiya - Ukuhlolwa Kukazwelonke kwe-SMA MA Physics 2012 - 2Amandla avamile asetshenziswa yiphansi emshayweni futhi aqonde ngqo ebusweni bephansi. Ngaphezu kwamandla avamile, kunezinamandla amathathu asebenza emshayweni, okungukuthi u-F1, F2 kanye no-w. Ubukhulu bamandla avamile bulingana nomphumela wala mandla amathathu, ukuze amandla avelayo ohlangothini oluqondile lulingana no-zero, into imile futhi Umthetho wokuqala kaNewton kugcwalisekile.
Amandla asohlangothini olufanayo ayahlanganiswa ndawonye bese lawo asohlangothini oluphambene esuswa.
w + F1 – F2 = 30 + 5 – 8 = 35 – 8 = 27 N
Umphumela wala mandla amathathu u-27 N. Ubukhulu bamandla avamile = amaNewton angu-27.
Impendulo efanele ngu-A.

9. Uma amandla avamile asebenza ebhulokini angama-20 N, khona-ke ubukhulu kanye nesiqondiso samandla angaphandle asebenza ebhulokini...

A. 50 N nangaphansiUkulingana kwezinhlayiya - Ukuhlolwa Kukazwelonke kwe-SMA MA Physics 2012 - 3
B. 30 N nangaphezulu
C. 30 N nangaphansi
D. 20 N nangaphezulu
E. 20 N nangaphansi

Ingxoxo
Kuyaziwa ukuthi:
w = 50 N
N = 20N
Umbuzo: Amandla angaphandle (F) amakhulu kangakanani asebenza kubhlokhi?
Impendulo:
Ukuze amandla avamile (N) = 20 N, kumele kube namandla angaphandle (F) = 30 N futhi kube ngakolunye uhlangothi oluphambene nalokho amandla adonsela phansi (w) = 50 N.
Ubukhulu bamandla angaphandle (F) = 30 N, isiqondiso samandla angaphandle siphezulu.
Impendulo efanele ingu-B.

Phrinta Friendly, PDF & Imeyili

Shiya amazwana