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1a).
1b).
1c).
1d).
1e).
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2a).
2b).
240 rpm
frekuensi
f = 240 / 60 = 4 Hz ←
periode
T = 1/f = 1/4 = 0,25 s ←
kecepatan sudut
ω = 2πf = 2π · 4 = 8π rad/s ←
kecepatan linear
v = ω R = 8π · 0,4 = 3,2 π m/s ←
percepatan sentripetal
as = ω² R = (8π)² · 0,4 = 25,6 π² m/s² ←
2][
t = 10 s
n = 50
R = 1 m
frekuensi
f = n/t = 50 / 10 = 5 Hz
kelajuan linear
v = ω R = 2π f R = 2π · 5 · 1 = 10π m/s ←
percepatan sentripetal
as = v² / R = (10π)² / 1 = 100π² m/s² ←