Tuning forks are used in the diagnosis of nervous afflictions known as large-fib

Question

Tuning forks are used in the diagnosis of nervous afflictions known as large-fiber polyneuropathies, which are often manifested in the form of reduced sensitivity to vibrations. Disorders that can result in this type of pathology include diabetes and nerve damage from exposure to heavy metals. The tuning fork in the figure below has a frequency of 141 Hz. The tips of the fork move with an amplitude of 1.18 mm.

(a) Find the maximum speed of the tips.

I thought it was .16638 because 1.18x10-3 x 141 = .16638 This is wrong, and I don't know why.

(b) Find the maximum acceleration of the tips. (Give your answer as a multiple of g.)

I got this correct, 94.50.

Explanation / Answer

f = 142 Hz , so .. ? = 2?f = 2?.142 = 891.76 rad/s? .. .. amplitude r = 1.18^-3m

(1) Using equ. for SHM .. v =

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