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( )<br />
y'1 = L 1 1 2 3 3<br />
cos = 3 cos 3<br />
2 2<br />
y"1 = L 2 <br />
2 sin2<br />
<br />
<br />
<br />
= 3 9<br />
2 sin3 ( )<br />
For 2 7<br />
<br />
3 6<br />
y2 = 3<br />
For the return, 7<br />
6<br />
and<br />
= <br />
2<br />
5<br />
3 _<br />
y3 = L<br />
<br />
1+ cos<br />
2 <br />
For the remainder of the cycle,<br />
and<br />
5<br />
3<br />
y4 = 0<br />
2<br />
=1.5( 1+ cos2)<br />
The displacement diagram is plotted in the following:<br />
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