Asked by Marco
A spider hangs from a strand of silk whose radius is 4.40 10-6 m. The density of the silk is 1300 kg/m3. When the spider moves, waves travel along the strand of silk at a speed of 264 m/s. Determine the mass of the spider.
Answers
Answered by
drwls
The speed of the wave can be related to the Tension (T) and density per length (d) of the strand. The formula is:
264 = sqrt(T/d)
d = pi*r^2*1300 = 7.9*10^-8 kg/m
The tension T equals M g. Use that fact to compute the spider's mass, M.
264 = sqrt(T/d)
d = pi*r^2*1300 = 7.9*10^-8 kg/m
The tension T equals M g. Use that fact to compute the spider's mass, M.
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