Amass on a spring vibrates in simple harmonic motion at a frequency of 4.0 hz and an amplitude of 4.0 cm. if a timer is started when its displacement is a maximum (hence x = 4 cm when t = 0), what is the speed of the mass when t = 3 s?

w= 0.0133m/s

Explanation:

Parameter given

X2 = 4cm T2 = 3secs T1=0 X1=0

Angular speed (w) = Change in displacement / change in time

X2 = (4/100)m

= 0.04m

Angular speed (w) = {0.04 - 0}÷ {3 - 0}

= 0.04/3

= 0.0133m/s

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