Respuestas

2013-08-30T02:32:56+02:00
N=60rev
r = 200m
t = 20min = 1200 seg

f = n = 60rev    = 0,05 rev/s
     t    1200s

T = t 1200s  = 20 s/rev
      n     60rev

w = 2*pi*f = 2*pi*0,05= 0,314rad/s

V = wr = 0,314rad/s * 200m = 62,8 m/s