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Problem #$4$:

Identify elements that store kinetic energy in the system. $(1$ pt$)$

What is the mass moment of inertia of the sphere with mass $m_s$ about its center? You don't need to do

the integration on your own; instead, do some research online. $(1$pt$)$

What are the translational and rotational velocities of each element? $(1$ pt$)$

Find the equivalent mass of the system given a displacement $x$ in Figure $1\mathrm{.}100.(1$ pt$)$

FIGURE $1\mathrm{.}100$ A bell crank lever connected to springs and masses.