besar dan dan arah gaya coulomb total yang dialami muatan paling kanan!
mohon dibantu kakak
Jawaban:
ΣFC = -162 × 10¹¹ N dan arahnya ke kiri
Penjelasan:
diketahui :
qA = 6 C
qB = -10 C
qC = 8 C
k = 9 × 10⁹ Nm²/C²
rAB = 20 cm = 20 × 10-² m
rAC = 60 cm = 60 × 10-² m
ditanya :
besar gaya Coulomb dan arahnya pd muatan C?
Jawab :
ΣFC = FAC - FBC
..
FAC = k. qA.qC/rAC²
FAC = 9.10⁹. (6)(8)/3600 × 10-⁴
FAC = 9.6.8/3600 × 10¹³
FAC = 0,12 × 10¹³
FAC = 12 × 10¹¹ N
..
FBC = k. qB.qC/rBC²
FBC = 9.10⁹. (10)(8)/400 × 10-⁴
FBC = 9.10.8/400 × 10¹³
FBC = 1,8 × 10¹³
FBC = 180 × 10¹¹ N
..
besar dan arah gaya Coulomb pd muatan paling kanan :
ΣFC = FAC - FBC
ΣFC = 12 × 10¹¹ – 180 × 10¹¹
ΣFC = -162 × 10¹¹ N
arah gaya Coulomb ke kiri (karena hasilnya negatif).
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