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r=1 m dan berputar 300 rpm
dit:
kelajuan linier?
jwb:
1 menit=60 s.
rumus peride atau T:
sehingga,
T=60
300
T=0,2 s
cari kecepatan rumusnya,
v=2.(3,14).(1)
0,2
v=30 m/s