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◾ Materi : Dinamika Gerak Melingkar◾ Sub materi : Kecepatan Sudut
◾ Mapel : Fisika
Diketahui :
ω = 50 rad/s
Ditanya :
f = ?
Penyelesaian :
ω = 2πf
50 = 2πf
f = 50/2π
f = 7,9 Hz
f = 8 Hz
1 rpm = 1 putaran per 1 menit
1 rpm = 1 putaran per 60 detik
sedangkan, 1 Hz = 1 putaran per 1 detik
8 Hz = 8 putaran per 1 detik x 60/60
8 Hz = 480 putaran per 60 detik
8 Hz = 480 putaran per 1 menit
8 Hz = 480 rpm
Jadi, frekuensi putaran sekitaran 8 Hz atau 480 rpm atau kurang lebih 500 rpm
semoga membantu
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-vin