I will gladly check your answers after you have domn some thinking about the proplem. They practically tell you what the amplitude is.
Maximum speeds in simple harmonic motion are w*Amplitude, and Maximum acclerations are w^2*Amplitude.
w is the angular frequency in radians per second. You must compute that from the frequency in Hz. You should know how to do that.
In an electric shaver, the blade moves back and forth over a distance of 2.0 mm. The motion is simple harmonic, with frequency 118 Hz.
(a) Find the amplitude.
mm
(b) Find the maximum blade speed.
m/s
(c) Find the magnitude of the maximum blade acceleration.
m/s2
2 answers
0.5