compel

to secure or bring on by pressure

www.dictionary.com.2011.nov.21.2011 http://dictionary.reference.com/browse/compel

http://www.google.com/imgres?q=applying+force&um=1&hl=en&safe=active&client=safari&sa=N&rls=en&biw=1024&bih=633&tbm=isch&tbnid=BGerjMRD9h6ctM:&imgrefurl=http://www.tutorvista.com/content/science/science-i/gravitation/thrust-pressure.php&docid=ntn1Qv7oAjWWRM&imgurl=http://images.tutorvista.com/content/gravitation/force-on-small-area.jpeg&w=334&h=292&ei=fJ3TTsC6MIXr0gG88thM&zoom=1&iact=rc&dur=234&sig=105596718450182149033&page=1&tbnh=137&tbnw=157&start=0&ndsp=16&ved=1t:429,r:1,s:0&tx=41&ty=18