3 su'aalood oo ku saabsan isleegta Impulse
1. Gaari culeyskiisu yahay 250 kg ayaa ku socda xawaare dhan 72 km/saacaddii, ka dibna wuxuu ku socdaa xoog joogto ah si 5 ilbiriqsi gudahood xawaarihiisu u noqdo 80 km/saacaddii. Go'aami rabitaanka 5 ilbiriqsi.
La yaqaan
Culeyska gaariga (m) = 250 kg
Xawaaraha bilowga ah (vo o ) = 72 km/saacaddii = 20 m/s
Xawaaraha kama dambaysta ah (v t ) = 80 km/saacaddii = 22 m/s
Muddada (t) = 5 ilbiriqsi
La doonayo: Go'aami rabitaanka (I)
Solution:
Qaacidada Is-beddelka: Is-beddelka = Isbeddelka xawaaraha
I = Δp
I = m (v t – v o ) = (250)(22 – 20) = (250)(2)
I = 500 kg m/s
2. Shay culeyskiisu yahay 0.4 kg oo markii hore ku socday xawaare dhan 20 m/s waxaa joojiya xoog joogto ah oo ah 50 N waqti cayiman gudaheed. Waa intee in le'eg ayuu xooggu weyn yahay?
La yaqaan :
Cufnaanta (m) = 0.4 kg
Xawaaraha (vo o ) = 20 m/s
Xawaaraha kama dambaysta ah (v t ) = 0 m/s
Xoogga (F) = 50 N
La Doonayo: Dareen-celin (I)
Solution:
Qaacidada Is-beddelka: Is-beddelka = Isbeddelka xawaaraha
I = Δp
I = m (v t – v o ) = (0,4)(0 – 20) = (0,4)(-20)
I = 8 kg m/s
3. Shay leh cuf m wuxuu ku socdaa xawaare joogto ah v, sidaa darteed kicinta shaygu waa…
Solution
Kacsi = isbeddel ku yimaada xawaaraha. Kacsigu wuu isbeddelaa marka cufka ama xawaaruhu isbeddelo. Markaa haddii xawaaruhu iyo cufku ay is-beddelaan markaa ma jiro isbeddel ku yimaada xawaaraha. Si aysan u jirin wax kicin ah.
