Jawabanmu

2013-12-15T17:02:53+07:00
Dik : r = 3 m; w= 5rad/s
dit a?
jwb: 
w=  v/r
5 = v/3
v= 5 x 3 
v= 15 m/s.  


v = 2 \pi r /t
15 = 2 \pi x 3 / t
t = 15 / 2 \pi x 3
t = 5 x 2 \pi = 5x2.3,14 =31,4

jadi, a = v/t 
a= 15/31,4 
a= 0,47 m/s ^{2}


semoga beneerr. 
1 5 1