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dan karena w=v/r maka w= 10/25
=(10/25)^2 x 25= 4 rad/s^2
R= 25 cm = 25/100 m = 1/4 m
ω= v/R = 10/ (1/4) = 40 rad/s
a= ω².R
= 40². 1/4
= 40.40 / 4
= 400 m/s²
atau a= v²/R = 10² / (1/4)
= 100 / (1/4) = 400 m/s²