he acceleration of point I
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Transcribed Image Text:The elliptical exercise machine shown below has fixed axes of rotation at points A and E.
Knowing that at the instant shown the flywheel AB has a constant angular velocity of 6 rad/s
clockwise, determine the acceleration of point D. Solve this problem, then assuming the ease of
starting the elliptical moving is proportional to the angular velocity (app) and using only the
equations below plus geometry, how would you redesign the machine to minimize the effort
needed to start the elliptical moving. Be sure to resolve the problem based on your redesign to
show that the effort would be lowered and estimate the percent change in effort.
aв = aд +ã XTB/A - W²TB/A
VB = VA+WXTB/A
0.2 m
1.2 m
0.09 m
0.12 m
0.6 m
0.8 m
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