Jawab no 18 Gerak Melingkar (Materinya)

KINEMATIKA
• Gerak Melingkar

GMB
n = 1
t = 24 jam = 24×3600 s
R = 6400 km = 6,4×10⁶ m
as = __?

frekuensi
f = n / t
f = 1 / (24×3600) Hz

kecepatan sudut
ω = 2π f
ω = 2π • (1 / (24×3600))
ω = 2π • / (24×3600) rad/s

percepatan sentripetal
as = ω² R
as = (2π • / (24×3600))² • 6,4×10⁶
as = 5π²/1458 ≈ 0,03 m/s² ✓