4.(7 points) An engineer aims to improve the mechanical advantage of the following
mechanism by relocating the revolute joint between Link 2 and Link 3. In the new design,
the joint is moved along the line connecting its original location and the existing joint
between Link 2 and Link 4. Please analyze whether the change provides a better
mechanical advantage. Justify your conclusion with appropriate reasoning, plots, and
calculations.
$F_{in}$ 2
3
A
5
Original Design
$F_{out}$
$F_{in}$ 2
5
3
$F_{out}$
New Design