Isibonelo semibuzo yamandla adonsela phansi

Izibonelo ezi-3 zemibuzo yamandla adonsela phansi

1. Into inesisindo esingu-1 kg. Uma ukusheshisa ngenxa yamandla adonsela phansi = 10 m/s², isisindo sale nto singakanani?
Ingxoxo
I-Diketahui :
Isisindo sento (m) = 1 kg
Ukusheshisa ngenxa yamandla adonsela phansi (g) = 10 m/s²
Kubuziwe Isisindo sento (w)
Jawab :
Ifomula yamandla adonsela phansi:
w = mg
Imininingwane:
m = isisindo (iyunithi yamazwe ngamazwe yikhilogramu, ifinyeziwe kg)
g = ukusheshisa ngenxa yamandla adonsela phansi (amayunithi aphesheya amamitha ngomzuzwana ayisikwele, afinyeziwe m/s²)
w = amandla adonsela phansi (amayunithi aphesheya angama-kg m/s² (okwaziwa nangokuthi uNewton)
Isisindo sento yile:
w = (1 kg)(10 m/s²) = 10 kg m/s² = 10 uNewton

2. Bheka izithombe (a) kanye no-(b) ngezansi.

(a) Dweba i-vector yamandla adonsela phansi ento, esithombeni (a).
(b) Dweba i-gravity vector, ingxenye ye-gravity vector ehambisana ne-altense plane kanye nengxenye ye-gravity vector eqondile ne-altense plane, esithombeni (b)!
Ingxoxo

Isiqondiso samandla adonsela phansi (w) siqonde phansi noma siqonde enkabeni yomhlaba.
w_x = ingxenye evundlile yamandla adonsela phansi kanye no-w_y = ingxenye eqondile yamandla adonsela phansi.

3. Uma isisindo sento = 1 kg kanye nokusheshisa ngenxa yamandla adonsela phansi = 10 m/s², nquma (a) ubukhulu bamandla adonsela phansi (b) ubukhulu bengxenye yevektha yamandla adonsela phansi ehambisana nendiza ethambekele kanye nobukhulu bengxenye yevektha yamandla adonsela phansi eqondile nendiza ethambekele

Ingxoxo
Ubukhulu bamandla adonsela phansi:
w = mg = (1 kg)(10 m/s²) = 10 kg m/s² = 10 uNewton
Ubukhulu bengxenye yamandla adonsela phansi ahambisana nendiza ethambekele:
w_x = isono 30^o = (10 N)(0,5) = 5 Newton
Ubukhulu bengxenye yamandla adonsela phansi aqonde ngqo endizeni ethambekele:
W_y = w cos 30^o = (10 N)(0,5√3) = 5√3 AmaNewton

[IsiNgisi: Isisindo kanye nesisindo - izinkinga nezixazululo]