Sebuah roda berotasi dengan kecepatan 260 RPM. agar semua titik pada roda memiliki kecepatan linier .... Question from @Meutiajovi

February 2019 1 41 Report

Sebuah roda berotasi dengan kecepatan 260 RPM. agar semua titik pada roda memiliki kecepatan linier tidak melebihi 340 m/s maka jari-jarinya adalah...
A. 10,5 m
B. 11,5 m
C. 12,5 m
D. 13,5 m
E. 14,5 m

*pakai cara

Zuhh BAB : DINAMIKA GERAK
SMA KELAS XI

Diketahui :
ω = 260 rpm
v = 340 m/s
Ditanyakan : R ?

Dijawab :
ω = (260x2π) / 60
= 8,7π
= 27,3 rad/s

Jari-jari
R = v/ω
= 340 / 27,3
= 13,5 m
jawaban D

2 votes Thanks 1

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