string is under tension 400N. A 1m string has mass 5grams. what is the speed if the wavelength is 1m. What is the speed if the wavelength is .5m. What is the frequency?
v = sqrt(Tension/(m/L))
v = f * wavelength
The Attempt at a Solution
a) v = sqrt(400N / (.005kg/1m) = 283m/s
b) im confused. whether to use the first or second equation?
v=sqrt(400N/.005kg/.5m) = 200m/s
c) f = v/wl = 200m/.5ms = 400Hz
is this correct?