Sebuah partikel bergerak melingkar beraturan dengan melakukan 420 putaran tiap menit. Frekuensi gera.... Question from @Meutiajovi

November 2018 1 78 Report

Sebuah partikel bergerak melingkar beraturan dengan melakukan 420 putaran tiap menit. Frekuensi gerak partikel tersebut adalah...
a. 420 Hz
b. 210 Hz
c. 70 Hz
d. 7 Hz
e. 6 Hz

dianutami3 Diketahui :
ω = 420 put/menit = 420 x 2π/60 = 14π rad/s

ditanyakan :
f = ?

jawab :
ω = 2π f
14π = 2π f
f = 14π/2π = 7 Hz

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