An object of mass m = 0.2 kg is hung from a spring whose spring constant is 80 Nm-1. The body is subject to a resistivity force given by -be, where e is its velocity and b= 4 Nm-.
An object of mass m = 0.2 kg is hung from a spring whose spring constant is 80 Nm-1. The body is subject to a resistivity force given by -be, where e is its velocity and b= 4 Nm-.
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Transcribed Image Text:Problem 1
An object of mass m = 0.2 kg is hung from a spring whose spring constant
is 80 Nm-1. The body is subject to a resisti vity force given by -br, where v
is its velocity and b = 4 Nm-.
1. Write the differential equation of motion, and specify what is the type of
oscillat ion the block undergo? (Critical, under damping, over damping)
2. Determine the period of such oscillation
3. The object is subjected to a sinusoidal force given by F(t) = Fosin(wt)
where Fa = 2N and w = 30rad/ sec. In steady state, what is the
amplitude of forced ascillation?
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