Respostas

2013-07-10T15:38:06-03:00
F=640/20
f=64/2
f=32Hz

w=2.pi.f
w=2.pi.32
w=64.pi rad/s

V=w.R
V=64pi.4.10^-2
V=2,56.pi m/s


f=1/T
32=1/T
T=1/32
T=31,25.10^-3