Suatu titik materi melakukan gerak melingkar beraturan dan ternyata tiap menit melakukan 300 putaran. Jika jari-jari lintasannya 10 cm, percepatan sentripentalnya adalah... a. 10 π² m/s² b. 10 π m/s² c. 10 m/s d. 100 π² m/s² e. 100 π m/s²
dianutami3
Diketahui : ω = 300 put/menit = 300 x 2π/60 = 10π rad/s R = 10 cm = 0,1 m
ditanyakan : as = ?
jawab : as = ω² R as = (10π)² 0,1 as = 100 π² (0,1) as = 10 π² m/s²
ω = 300 put/menit = 300 x 2π/60 = 10π rad/s
R = 10 cm = 0,1 m
ditanyakan :
as = ?
jawab :
as = ω² R
as = (10π)² 0,1
as = 100 π² (0,1)
as = 10 π² m/s²