below picture explain relations between constant linear motion and radial forces
http://1.bp.blogspot.com/-i0QAJkwDUfU/VBGtJcwO_PI/AAAAAAAAB90/GgkSTBMgMDQ/s1600/CIMG3319.JPG
Everyone see that exist difference between paralel and perpendicular position !!!
If You want to use above idea to generate rtation we must confirm
SUN ---Earth position ( direction is important to evaluate forces )
Your finger is pushing mass m ( m is on the table in Your room )
<---V m
or
m ---->V
You can use lower energy and mass m will have the same speed V respect to table ( direction is imortant )
please study 270 km/s or 330 km/s what is registering person that is pusing mass m on table ?? !!!
How big Q = mg we are pushing ?
http://youtu.be/HXKwNvA8VHs