Jawaban:
B
Penjelasan:
Lampiran
b. x(t) = 16 cos (πt + π)
penjelasan:
diket:
a = 16 cm
t = 2 s
t = 0 → y = -16
x = _?
kecepatan sudut
ω = 2π / t
ω = 2π / 2
ω = π rad/s
persamaan simpamgan
x = a sin (ωt + 0o)
x = 16 sin (πt + 0o)
untuk t = 0, x = -16
-16 = 16 sin (0 + 0o)
-1 = sin 0o
0o = 270° = 3π/2 rad
jadi,
x = 16 sin (πt + 3π/2) ← jawab
atau
x = - 16 cos πt
maaf kalau salah
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Jawaban:
B
Penjelasan:
Lampiran
Jawaban:
b. x(t) = 16 cos (πt + π)
penjelasan:
diket:
a = 16 cm
t = 2 s
t = 0 → y = -16
x = _?
kecepatan sudut
ω = 2π / t
ω = 2π / 2
ω = π rad/s
persamaan simpamgan
x = a sin (ωt + 0o)
x = 16 sin (πt + 0o)
untuk t = 0, x = -16
-16 = 16 sin (0 + 0o)
-1 = sin 0o
0o = 270° = 3π/2 rad
jadi,
x = 16 sin (πt + 3π/2) ← jawab
atau
x = - 16 cos πt
maaf kalau salah