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Question WHP8-Q1. The system in figure is composed of: m1,Ic . a disc of radius r = 0.5 m, mass m1 =
0.5 kg and moment of inertia Ic = 62.5 g.ma, with respect to its centre C, which is pinned to the ground.
Oc a slider of mass my = 0.3 kg which can only move vertically and can be modelled as a p...

I was attempting this question and here is my working out however I don't know where does the m_2*g goes away. Would like some feedback

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DJ = - y . while DI = w - y m z y ? = = ( . y V - Ic Ry - kay - mig + up w z s I n ( W t ) , for equilibrium, any f
ur c tion varies with time - e y z e , y z l y = yeg K y - m z g = Q q y = Q 3 . 1 . 8 1 - to - Ky = M zg * = - 0 .
2943 m - R +c = mitz sub in mzy 2 - Cy - mik y - - ky - mag

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M 2 NV (ucw sin ( up ) my = 9 . 2 Rg K = 10 1 / M Up - l g . m KD I W - grade Newtons laws. AMzy = CD /
+ T - mcg + Uq W s in ( Wt ) I c d = T r - k D lor T = I c d + K A l X rearrange. m z y = ( D | + I c d + K D I -
m zgd new - sin ( WF ) Kinematics - arz- or * - - y

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q Y = F * / K X un m A 9.56 4. 8640 2 mix WA - 2 . 8: 45 / 4. 26 4 0 20.042 6 y/ 2 8 . 0 03 5 m or 3 . S m
m

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Illew sin lot ) 052 4 0, 0 1 0 - Cos ( 37 - 2 ] 2 becusse smcfly saccos 4 - 2 2

Also how do you this part as well

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Question WHP8-Q2. In the same system as Question WHP8- Q1, The rotating unbalance excitation is
substituted by a m1,Ic moving base y, at the other end of the damper. D a) Knowing that the moving
base has a motion is Yb = Oc Yo cos(wt) with Yo = 10 mm and w = 3 rad/s find the new ste...