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- kuat medan gravitasi
g_bulan = ___?
g_bumi = 9,8 m/s²
M_bulan = 1/8 1 M_bumi
R_bulan = 1/4 R_bumi
Kuat medan gravitasi
g = G M/R²
perbandingan
g_bulan / g_bumi = (M_bulan / M_bumi) • (R_bumi / R_bulan)²
g_bulan / g_bumi = (1/81) • (4)²
g_bulan / g_bumi = 16/81
g_bulan = 16/81 • g_bumi
g_bulan = 16/81 • 9,8 = 1,9358 m/s² ← jwb