Sebuah benda massanya 400 gram diikat dengan tali yang panjanganya 50 cm. Kemudia diputar sehingga bergerak melingkar beraturan. Berapa gaya sentipetalnya jika kecepatan sudutnya 10 rad/s?
liliput01
Diket: m = 400 gram = 0,4 kg R = 50 cm = 0,5 m ω = 10 rad/s Dit: fs......? v = ω . R v = 10 x 0,5 v = 5 m/s , as = v²/R as = 5²/0,5 as = 25/0,5 as = 50 m/s² , Fs = m. as Fs = 0,4 x 50 Fs = 20 N
m = 400 gram = 0,4 kg
R = 50 cm = 0,5 m
ω = 10 rad/s
Dit: fs......?
v = ω . R
v = 10 x 0,5
v = 5 m/s
,
as = v²/R
as = 5²/0,5
as = 25/0,5
as = 50 m/s²
,
Fs = m. as
Fs = 0,4 x 50
Fs = 20 N